Knitted Fabric

Knitted fabric is all around us—from cozy cardigans to high-performance sportswear. Its flexibility, softness, and breathability make it a staple in wardrobes, interior design, and even industrial applications. But what exactly is knitted fabric? How is it made, and what types are out there? This comprehensive guide will walk you through every detail you need to know.

What Is Knitted Fabric?

Knitted fabric is a textile made by interlocking loops of yarn, creating a flexible, elastic material. Unlike woven fabrics—where threads crisscross at right angles—knitted fabrics are produced using a single yarn (or a set of yarns) that form a continuous series of loops. These loops give the fabric its unique stretch and resilience, making it ideal for clothing that needs to move with the body.

Because of this looped structure, knitted fabrics are softer and more pliable than woven ones, making them ideal for applications where comfort is key.

A Brief History of Knitting

• Ancient Origins: Early examples of knitting have been found in Egypt and date back to the 5th century. These early techniques were used to create socks and other utilitarian garments.
• European Adoption: Knitting gained popularity in Europe by the 14th century. Skilled knitters were in high demand, and knitting guilds were established in cities across Spain, France, and the British Isles.
• Industrial Revolution: The 19th century saw the rise of the knitting machine, particularly the circular knitting machine. This innovation revolutionized production and made knitted textiles more accessible to the masses.
• Modern Day: Today, knitting combines tradition and technology. From high-speed industrial knitting machines to 3D knitting for seamless garments, the field continues to evolve.

How Is Knitted Fabric Made?

There are two main types of knitting techniques, each producing fabrics with distinct characteristics.

Weft Knitting

In weft knitting, the yarn runs horizontally across the fabric. The loops are formed in a continuous row (course), and the yarn follows a serpentine path. This technique allows for significant horizontal stretch and drape. Common types of weft-knitted fabrics include:

• Jersey Knit: The most basic and widely used knit. Smooth front, textured back. Soft, stretchy, and ideal for T-shirts and lightweight dresses.
• Rib Knit: Characterized by vertical "ribs" formed by alternating knit and purl stitches. Very elastic, especially sideways—often used for cuffs, collars, and form-fitting garments.
• Interlock Knit: Two rows of stitches interlocked to create a thicker, smoother fabric on both sides. Often used for polos and baby clothes.
• Purl Knit: Alternates knit and purl rows on both sides, resulting in a reversible fabric with a lot of stretch and a soft texture. Often used in scarves and sweaters.

Weft knitting can be done both by hand and by machine.

Warp Knitting

Warp knitting involves yarns that run vertically. Each loop is made from a different yarn, and multiple yarns are used at once. This method is faster and more stable than weft knitting, but generally less elastic. Popular warp-knit fabrics include:

• Tricot: A smooth, lightweight knit often used in lingerie, linings, and activewear. It has a fine texture and resists runs and snags.
• Raschel: A more open, lace-like knit used in netting, lace, and mesh. Raschel machines can produce highly decorative patterns and textured surfaces.

Warp knitting is always machine-based due to its complexity.

Types of Knitted Fabrics and Their Characteristics

Jersey Knit

The go-to fabric for basics like T-shirts and lightweight dresses. Smooth on the front with a slight texture on the back. Offers good stretch and comfort, but tends to curl at the edges when cut and can be prone to pilling with low-quality fibers.

Rib Knit

Alternates between knit and purl stitches in vertical columns. Incredibly stretchy across the width and recovers its shape well—perfect for stretchy cuffs, neckbands, and fitted garments.

Interlock Knit

Made by interlocking two layers of jersey. Thicker, more stable, and smoother on both sides. Has less stretch than rib or single jersey but provides a more luxurious feel and excellent durability.

Purl Knit

Soft and reversible, made by alternating rows of knit and purl stitches. Gives a "bumpy" texture on both sides, good elasticity, and a rustic look ideal for sweaters and cardigans.

Tricot Knit

A finely-knit, smooth fabric that lies flat and doesn't curl. Lightweight and breathable, often used in athletic apparel, lingerie, and linings.

Raschel Knit

Has a netted or lacy appearance and is often decorative. Used for mesh garments, lace, trims, and sometimes heavy-duty applications like upholstery backing.

Get The Supply List By Clicking Here

Knit Fabric by Weight

Fabric weight is one of the most important factors in choosing the right knit for a project. The weight of a knit fabric determines how it drapes, how warm it is, how stable it is to sew, and what garment types it's best suited for. Knit weight is measured in grams per square meter (GSM), though it's also commonly described in practical terms (lightweight, medium, heavyweight).

Lightweight Knits (under 150 GSM)

Lightweight knits are sheer to semi-sheer, with excellent drape and a fluid, flowing quality. They are the most challenging knits to sew because they shift easily during cutting and stitching.

• Examples: Single jersey (80–120 GSM), mesh, tricot, burnout velvet, lightweight bamboo jersey, silk jersey.
• Properties: Very drapey, semi-transparent, minimal body. Stretches easily in multiple directions. Edges curl significantly when cut.
• Best for: Draped tops and blouses, lightweight dresses, linings, lingerie, activewear underlayers, and layering pieces.
• Sewing notes: Use the finest ballpoint needle appropriate (65/9 or 70/10). Reduce presser foot pressure significantly. Use tissue paper or a stabilizer under the fabric when cutting to prevent shifting. Sew slowly and handle minimally to prevent stretching.

Medium-Weight Knits (150–300 GSM)

Medium-weight knits are the most versatile and beginner-friendly category. They have enough body to hold their shape during cutting and sewing while still providing the stretch and comfort that makes knits desirable.

• Examples: Standard cotton jersey (150–200 GSM), interlock (180–250 GSM), ponte (200–280 GSM), French terry (200–280 GSM), velour (200–260 GSM), swimwear fabric (180–220 GSM).
• Properties: Good body and drape, moderate to good stretch, stable enough to cut and sew without excessive shifting. Edges may curl slightly (jersey) or not at all (ponte, interlock).
• Best for: T-shirts, casual dresses, skirts, leggings, activewear, swimwear, children's clothing, and structured knit garments like ponte blazers and ponte trousers.
• Sewing notes: Use a ballpoint or stretch needle (75/11 or 80/12). A walking foot helps feed layers evenly. Most home sewing machines handle medium-weight knits well with appropriate needle and stitch adjustments.

Heavyweight Knits (300+ GSM)

Heavyweight knits have significant body and warmth. They are the most stable knits to sew—they don't shift or curl—but they require heavier needles and may need a heavy-duty machine for multiple layers.

• Examples: Sweatshirt fleece (280–400 GSM), double-knit (300–400 GSM), heavy ponte (300–350 GSM), wool jersey (300–400 GSM), heavy rib knit (300–450 GSM), sherpa (400–600 GSM).
• Properties: Substantial body, excellent warmth, minimal stretch compared to lighter knits (especially double-knit and heavy ponte). Very stable—behaves almost like a woven fabric in construction.
• Best for: Sweatshirts, hoodies, joggers, outerwear, structured knit coats, heavy sweaters, and cold-weather garments.
• Sewing notes: Use a ballpoint or stretch needle (90/14 or 100/16). Increase stitch length slightly (2.5–3.0mm). A walking foot is essential for even feeding. Seam allowances may need to be graded to reduce bulk at seams and hems.

Quick Reference: Knit Weight by Project

Knit Fabric Stretch Percentages and How to Measure Them

One of the most important—and most misunderstood—aspects of sewing with knit fabrics is understanding stretch percentage and matching it to pattern requirements. Getting this right is the difference between a garment that fits beautifully and one that is too tight, too loose, or distorted.

Understanding Stretch Direction

• 2-way stretch: The fabric stretches significantly in one direction only—usually the crosswise direction (from selvedge to selvedge). Most weft-knit fabrics have 2-way stretch. The lengthwise direction has minimal stretch.
• 4-way stretch: The fabric stretches significantly in both the crosswise and lengthwise directions. Fabrics with spandex/elastane content typically have 4-way stretch. Essential for swimwear, activewear, and any garment that must stretch in all directions during wear.
• Warp knits (tricot, raschel): Have more stretch in the lengthwise direction than weft knits, and less in the crosswise direction. This is the opposite of most weft knits.

How to Measure Stretch Percentage

Stretch percentage tells you how much a fabric can stretch relative to its original length. Pattern envelopes for knit garments specify a required stretch percentage—always test your fabric before cutting to confirm it meets the requirement.

1. Cut a strip of fabric 4 inches wide in the crosswise direction (from selvedge to selvedge).
2. Fold the strip in half so you have a 2-inch section to measure.
3. Hold one end of the 2-inch section firmly against a ruler at the 0 mark.
4. Stretch the fabric as far as it will comfortably go without forcing it, and note the measurement.
5. Calculate stretch percentage: (stretched length – original length) ÷ original length × 100.

Example: If your 2-inch sample stretches to 3 inches: (3 – 2) ÷ 2 × 100 = 50% stretch.

Using a Stretch Gauge

Many sewing patterns include a stretch gauge—a printed ruler on the pattern envelope or instruction sheet that shows exactly how far a specific length of fabric should stretch to meet the pattern's requirements. To use it:

1. Cut a crosswise strip of your fabric at least 4 inches wide.
2. Hold one end of the fabric at the left edge of the stretch gauge.
3. Stretch the fabric to the right edge of the gauge without forcing it.
4. If the fabric reaches the right edge comfortably, it has sufficient stretch for the pattern. If it doesn't reach, the fabric has insufficient stretch and the garment will be too tight.

Stretch Percentage Categories

Why Stretch Percentage Matters

Knit patterns are drafted with negative ease—the pattern pieces are smaller than the body measurements, relying on the fabric's stretch to fit the body. If your fabric has less stretch than the pattern requires, the finished garment will be too tight and may not go on at all. If your fabric has more stretch than required, the garment may be too loose and baggy. Always test stretch before cutting.

Knitted vs. Woven Fabrics: Key Differences

Stretch and Flexibility

Knitted fabrics are naturally stretchy due to their looped structure, especially horizontally. Woven fabrics generally have little to no stretch unless blended with elastic fibers.

Breathability

Knits are often more breathable and moisture-wicking than wovens, making them a top choice for activewear and casual garments.

Drape and Comfort

Knit fabrics drape well and move fluidly, offering a soft, clingy fit that adapts to the body. Woven fabrics hold their shape better and are ideal for structured garments like blazers and trousers.

Edge Finishing

Knits don't fray when cut but may curl at the edges. Wovens fray easily and require hemming or serging.

Fibers Used in Knitted Fabrics

Natural Fibers

• Cotton: Soft, breathable, and ideal for casual wear. However, it can shrink and wrinkle.
• Wool: Excellent for insulation, warm and moisture-wicking. Used in sweaters, scarves, and cold-weather wear.
• Silk: Rare in knit form, but luxurious and soft with a beautiful drape.

Synthetic Fibers

• Polyester: Durable, colorfast, quick-drying. Common in sportswear and outerwear.
• Nylon: Strong, smooth, used in lingerie and performance fabrics.
• Spandex (Lycra/Elastane): Provides exceptional stretch and recovery. Often blended in small amounts with other fibers.

Blends

Fiber blending is common in knits to combine the best qualities—like the softness of cotton with the stretch of spandex, or the durability of polyester.

Reading Knit Fabric Patterns and Labels

Sewing patterns for knit garments use specific language and conventions that differ from woven fabric patterns. Understanding how to read these requirements—and how to evaluate whether your fabric meets them—is essential for successful knit sewing.

What "Suitable for Knits Only" Means

When a pattern envelope states "suitable for knits only," it means the pattern has been drafted with negative ease—the pattern pieces are smaller than the body measurements. The garment relies entirely on the fabric's stretch to fit the body and go on and off. Using a woven fabric (which has no stretch) with a "knits only" pattern will result in a garment that is too small to wear.

Patterns labeled "suitable for knits only" will also specify a minimum stretch percentage—the fabric must stretch at least this much for the garment to fit correctly.

Decoding Pattern Envelope Language

• "For knit fabrics with at least 50% stretch": The fabric must stretch at least 50% in the crosswise direction. Test with the stretch gauge before cutting.
• "For stable knits" or "for knits with little stretch": The pattern is designed for ponte, interlock, or double-knit—fabrics that behave more like wovens. Using a very stretchy fabric will result in a baggy, shapeless garment.
• "For two-way stretch fabrics": The fabric needs significant stretch in the crosswise direction only. Most jersey and interlock fabrics qualify.
• "For four-way stretch fabrics": The fabric must stretch significantly in both directions. Required for swimwear, activewear, and compression garments. Nylon/spandex and polyester/spandex fabrics typically qualify.
• "Not suitable for obvious diagonals": This instruction (common on woven patterns) is less relevant for knits, but some knit fabrics have directional prints or textures that require careful layout.

Understanding Ease in Knit Patterns

Ease is the difference between your body measurement and the finished garment measurement. In woven garments, ease is always positive (the garment is larger than the body). In knit garments, ease is often negative (the garment is smaller than the body), because the fabric stretches to fit.

• Negative ease: The garment is smaller than the body measurement. Common in fitted knit garments like T-shirts, leggings, and swimwear. The amount of negative ease depends on the fabric's stretch percentage—more stretch allows for more negative ease.
• Zero ease: The garment measurement equals the body measurement. The fabric's stretch provides comfort and movement without the garment being deliberately fitted.
• Positive ease: The garment is larger than the body measurement. Used in relaxed-fit knit garments like oversized sweatshirts and draped tops.

How to Substitute Knit Fabrics

When the specific fabric recommended by a pattern is unavailable, substituting a different knit requires matching three key characteristics:

1. Stretch percentage: The substitute must meet the pattern's minimum stretch requirement. Test with the stretch gauge.
2. Weight: The substitute should be similar in weight to the recommended fabric. A pattern designed for lightweight jersey will not work well with heavy ponte, and vice versa.
3. Recovery: The substitute should have similar recovery (the ability to return to its original dimensions after stretching). A fabric with poor recovery will bag out at the knees, elbows, and seat with wear.

If you're unsure whether a substitute will work, make a test garment from inexpensive fabric before cutting into your fashion fabric.

Common Applications of Knitted Fabric

• Fashion & Apparel: T-shirts, dresses, leggings, sweaters, underwear, socks, and activewear
• Home Textiles: Cushion covers, throws, blankets, and bed linens
• Medical Use: Compression garments, elastic bandages, orthopedic supports
• Industrial Use: Automotive upholstery, filtration fabrics, geotextiles, and reinforcement layers

Sewing with Knit Fabrics: A Complete Guide

Knit fabrics are among the most rewarding—and most misunderstood—materials to sew. Their stretch, recovery, and tendency to curl at the edges require specific tools and techniques that differ significantly from sewing woven fabric. Master these fundamentals and knit sewing becomes fast, satisfying, and highly versatile.

Needle Selection

The single most important tool adjustment for sewing knits is using the correct needle. A standard sharp or universal needle has a slightly rounded tip that can pierce and break the knitted loops, causing skipped stitches, runs, and holes in the fabric.

• Ballpoint needle: Has a rounded tip that slides between the knitted loops rather than piercing them. The standard choice for most knit fabrics—cotton jersey, interlock, French terry, sweatshirt fleece. Available in sizes 70/10 through 100/16; choose the size appropriate for your fabric weight.
• Stretch needle: Has a specially designed scarf (the groove above the eye) that prevents skipped stitches on highly elastic fabrics. The best choice for fabrics with high spandex content—swimwear, activewear, compression fabrics, and any fabric that is very stretchy. Available in sizes 75/11 and 90/14.
• Twin needle: Two needles on a single shank that sew two parallel rows of stitching simultaneously on the top, with a single zigzag stitch on the underside. Creates a professional-looking hem with built-in stretch—the standard finish for T-shirt hems and necklines. Use a twin needle with a ballpoint or stretch tip for knit fabrics.
• Change your needle frequently: A dull needle is the most common cause of skipped stitches and fabric damage in knit sewing. Change your needle at the start of every project, or every 6–8 hours of sewing time.

Stitch Selection

Knit seams must stretch with the fabric—a standard straight stitch will pop when the seam is stretched, because the thread has no give. Use stitches that have built-in stretch:

• Zigzag stitch: The most accessible stretch stitch for home sewers. A narrow zigzag (width 1.5–2.0, length 2.0–2.5) provides enough stretch for most knit seams without creating excessive bulk. Wider zigzag stitches add more stretch but also more bulk.
• Lightning bolt stitch (triple stretch stitch): A built-in stitch on many modern machines that sews forward, backward, and forward again for each stitch, creating a very strong, stretchy seam. Excellent for high-stress seams in activewear and swimwear. Difficult to remove if you need to unpick—sew carefully.
• Serger (overlock) stitch: A serger simultaneously trims the seam allowance, finishes the edge, and sews a stretchy overlock stitch in one pass. The standard for professional knit construction. A 4-thread overlock is the most common and versatile; a 3-thread overlock creates a narrower, more flexible seam suitable for lightweight knits.
• Coverstitch: A specialized stitch (requiring a coverstitch machine or coverstitch function on a serger) that creates two or three parallel rows of stitching on the top and a looped stitch on the underside. The professional standard for hemming knit garments—stretchy, flat, and attractive on both sides.
• Straight stitch for stable knits: Ponte, interlock, and double-knit have minimal stretch and can be sewn with a standard straight stitch (length 2.5–3.0mm) in most cases. These fabrics behave similarly to woven fabrics in construction.

Cutting Knit Fabric

• Use sharp tools: Sharp shears or a rotary cutter with a fresh blade. Dull blades drag and stretch knit fabric, causing inaccurate cuts.
• Stabilize before cutting: Knit fabric shifts easily during cutting. Place it on a cutting mat and use pattern weights rather than pins—pins can distort the fabric and leave marks. For very slippery or lightweight knits, place a layer of tissue paper under the fabric to prevent shifting.
• Cut single layer when possible: Knit fabric is difficult to cut accurately in double layers because the stretch causes the layers to shift relative to each other. Cut single layer, right side up, for the most accurate results.
• Don't pull or stretch while cutting: Let the fabric lie flat and relaxed. Cutting stretched fabric produces pieces that are smaller than intended—they'll spring back to their relaxed size after cutting, making the finished garment too small.
• Mark with chalk or clips: Fabric markers can bleed through knit fabric. Use tailor's chalk, chalk wheels, or small clips at notch positions for pattern markings.

Handling Curling Edges

Single jersey and other weft-knit fabrics curl at the cut edges—the edges roll toward the right side of the fabric. This is a natural property of the knit structure and cannot be permanently eliminated, but it can be managed:

• Work quickly: Cut and sew knit pieces promptly. The longer cut edges are left unfinished, the more they curl and the harder they are to handle.
• Use clips instead of pins: Wonder clips hold curled edges flat without distorting the fabric the way pins can.
• Spray with water: Lightly misting the cut edges with water relaxes the curl temporarily, making the fabric easier to handle during sewing.
• Stabilize with stay tape: For necklines, shoulder seams, and other edges that must not stretch, apply a strip of stay tape (narrow woven tape or clear elastic) along the seam line before sewing. This prevents the edge from stretching out during construction and wear.
• Serge immediately: Running cut edges through a serger immediately after cutting finishes the edge and reduces curling significantly.

Seam Finishes for Knit Fabrics

Unlike woven fabrics, knit fabrics do not fray—so seam finishing is not strictly necessary to prevent unraveling. However, finishing seams improves the appearance of the garment interior, reduces bulk, and prevents the seam allowance from rolling and creating ridges on the right side.

• Serged seam: The most common and professional finish for knit seams. Sew the seam with a serger (overlocker) using a 4-thread overlock stitch. The serger simultaneously sews the seam, trims the seam allowance, and finishes the edge in one pass. Press the seam allowance to one side.
• Zigzag seam: Sew the seam with a narrow zigzag stitch, then press the seam allowance to one side and topstitch it flat with a second row of zigzag or straight stitching. A good option for home sewers without a serger.
• Flat-lock seam (serger): A specialized serger technique that creates a flat seam with no seam allowance bulk—the seam lies completely flat against the body. Used in activewear and swimwear where seam bulk would cause discomfort. Requires a serger with flat-lock capability.
• Bound seam: The seam allowances are enclosed in a strip of knit binding. Creates a clean, professional interior finish. Used in high-end activewear and swimwear.

Hemming Knit Fabrics

The hem is often the most visible seam in a knit garment, and getting it right makes a significant difference in the professional appearance of the finished piece.

• Twin needle hem: The most popular home-sewing hem for knit garments. Fold the hem allowance to the wrong side and press. Sew from the right side with a twin needle, keeping the stitching parallel to the hem edge. The twin needle creates two parallel rows of straight stitching on the right side and a zigzag on the wrong side—stretchy, flat, and professional-looking.
• Coverstitch hem: The professional standard for knit hems. Requires a coverstitch machine or coverstitch function. Creates two or three parallel rows of stitching on the right side and a looped stitch on the wrong side—identical to the hems on ready-to-wear T-shirts and activewear.
• Zigzag hem: Fold the hem allowance to the wrong side and sew with a narrow zigzag stitch from the right side. Simple and effective, though less refined in appearance than twin needle or coverstitch.
• Lettuce hem: A decorative hem created by stretching the fabric aggressively while sewing a zigzag stitch along the raw edge. The fabric ruffles and curls, creating a wavy, lettuce-leaf edge. Used for decorative hems on lightweight jersey tops, skirts, and children's clothing.
• Fold-over elastic (FOE): A soft, decorative elastic folded over the raw edge and stitched in place. Used for lingerie, swimwear, and activewear hems and edges. Provides a clean finish and functional elastic in one step.

Troubleshooting Common Knit Sewing Problems

Even experienced sewists encounter problems when sewing knit fabrics. Understanding the causes of common issues—and how to prevent or correct them—saves time, fabric, and frustration.

Skipped Stitches

Skipped stitches—where the machine fails to form a stitch on every needle penetration—are the most common problem in knit sewing.

• Causes: Wrong needle type (a sharp or universal needle deflects when piercing knit loops, causing it to miss the bobbin hook); needle too fine for the fabric weight; needle dull or damaged; sewing too fast on stretchy fabric.
• Solutions: Switch to a ballpoint or stretch needle; increase needle size; replace the needle (even a new needle can be defective—try a fresh one from a different pack); slow down your sewing speed; hold the fabric taut (but not stretched) as it feeds through the machine.

Wavy or Rippled Seams

Wavy seams—where the seam line ripples or puckers rather than lying flat—are caused by the fabric stretching during sewing.

• Causes: Pulling or pushing the fabric through the machine (the feed dogs should do the work); presser foot pressure too high, causing the fabric to stretch as it feeds; stitch length too short; sewing on the bias of the knit.
• Solutions: Use a walking foot—this is the single most effective solution for wavy seams. The walking foot feeds the top layer at the same rate as the feed dogs feed the bottom layer, preventing differential stretching. Reduce presser foot pressure. Increase stitch length slightly. Let the fabric feed naturally without guiding it too firmly.

Stretched-Out Necklines

A neckline that stretches out and loses its shape during construction or after the first wearing is one of the most frustrating knit sewing problems.

• Causes: The neckline seam was stretched during sewing; the neckband was not eased correctly; the neckband fabric has insufficient recovery; the neckline was not stabilized before attaching the band.
• Prevention: Stay-stitch the neckline seam allowance immediately after cutting, before any other construction. Use a stay tape or clear elastic along the neckline seam to prevent stretching. When attaching a neckband, divide both the neckline and the band into quarters and pin at the quarter points—this distributes the ease evenly. Sew with the neckband on top (against the feed dogs) so the feed dogs ease the neckline to the band rather than stretching the band.
• Correction: If the neckline has already stretched out, it can sometimes be corrected by running a basting stitch around the neckline and pulling the thread to gather the neckline back to the correct measurement, then pressing with steam to set the shape. For severe stretching, the neckband may need to be removed and reattached.

Fabric Runs and Holes

Runs—where a loop breaks and the run travels down the fabric—and holes from needle damage are particularly problematic in fine knit fabrics.

• Causes: Wrong needle type (sharp needle piercing loops instead of sliding between them); needle too large for the fabric weight; sewing over pins (never sew over pins in knit fabric—the needle can hit the pin and deflect, tearing the fabric); needle hitting a seam or thick area at high speed.
• Solutions: Always use a ballpoint or stretch needle. Use the finest needle appropriate for the fabric weight. Remove pins before the needle reaches them—or use clips instead of pins. Slow down when sewing over thick areas (seam intersections, waistbands).
• Repairing runs: Small runs in jersey can be repaired with a crochet hook or latch hook by carefully re-looping the run back up the fabric. This requires patience and practice but can save a garment from the scrap pile.

Hem Tunneling

Tunneling occurs when the fabric between the two rows of a twin needle hem puffs up, creating a raised ridge between the needle lines.

• Causes: Twin needle too wide for the fabric weight; bobbin tension too tight; fabric not held taut enough during hemming; using a standard presser foot instead of a walking foot.
• Solutions: Use a narrower twin needle (2.0mm or 2.5mm spacing rather than 4.0mm); reduce bobbin tension slightly; use a walking foot or stretch foot; hold the fabric taut (but not stretched) as it feeds through the machine. Woolly nylon thread in the bobbin (wound loosely) can also reduce tunneling by providing a softer, more flexible underside stitch.

Fabric Shifting During Cutting

Knit fabric shifts and stretches during cutting, producing pieces that are larger or smaller than intended.

• Causes: Cutting double layer (the layers shift relative to each other); using pins (which distort the fabric); cutting on a slippery surface; pulling the fabric while cutting.
• Solutions: Cut single layer whenever possible. Use pattern weights instead of pins. Place a cutting mat under the fabric to prevent slipping. Use a rotary cutter with a fresh blade for the cleanest, most accurate cuts. For very slippery fabrics, place a layer of tissue paper under the fabric before cutting.

Advantages of Knitted Fabric

• Comfortable and Flexible: Ideal for form-fitting and movement-oriented garments
• Breathable: Allows for airflow and moisture management
• Wrinkle Resistant: Knits naturally resist creasing, making them travel-friendly
• Quick-Drying: Especially when made from synthetic or blended fibers
• Non-Fraying: Unlike woven fabrics, the edges of knit fabric don't unravel

Care and Maintenance Tips

Washing

• Use cold or lukewarm water to prevent shrinkage
• Opt for gentle cycles or handwashing, especially for delicate items
• Turn garments inside out to protect the fabric's surface

Drying

• Air dry flat to maintain shape
• Avoid hanging, which may stretch the fabric
• Tumble dry only if the care label permits—and then on low heat

Storage

• Fold garments neatly instead of hanging
• Store in a cool, dry place away from sunlight to prevent fading or fiber damage

Sustainability and Innovations

• 3D Knitting Technologies: Allow garments to be produced with zero waste by knitting entire pieces seamlessly
• Eco-Friendly Fibers: Bamboo, organic cotton, and Tencel are increasingly used
• Recycled Yarns: Polyester from recycled plastic bottles and wool from pre-consumer waste are becoming standard in the industry

Final Thoughts

Knitted fabric is much more than just a cozy material. It's a dynamic, versatile, and essential part of textile innovation, design, and comfort. By understanding how it's made, the various types available, how to measure and match stretch, and how to sew it successfully, you're better equipped to design, wear, or shop with insight and intention.