What Is Twill Fabric?
Twill fabric is a woven cloth in which the yarns interlace in a stepped pattern, producing a pattern of fine diagonal lines on the surface. In plain weave each warp yarn passes over one weft yarn and under the next. In twill, the weft passes over two or more warp yarns before going under one, and each row shifts the pattern by one yarn. The shift creates the diagonal rib that you can see on a pair of chinos or the inside of a pair of jeans.
Because twill has longer floats on the surface, the yarns can be packed more closely than in plain weave. The result is a fabric that is denser, more flexible and more drapey for its weight, with better tear resistance and a surface that hides marks better. Those traits explain why twill fabric appears in so many hard-wearing garments, from school trousers to work jackets.
The sections below explain the construction in a little more detail, then walk through the main twill families and how to choose between them. For the wider picture of woven and knit options, our types of fabric for clothing guide is a useful companion.
How the Twill Weave Is Built: 2/1, 3/1 and Direction
Twill structures are written as a fraction. A 2/1 twill has the weft passing over two warp yarns and under one on the face. A 3/1 twill passes over three and under one. The higher the first number, the more yarn floats on the surface, which gives a more pronounced diagonal, a smoother look and a softer, more flexible cloth, but also a more open structure that can snag more easily.
The diagonal itself can rise toward the upper right or the upper left. A right-hand twill, with the diagonal rising to the right, is the most common in garments and the standard for most denim. A left-hand twill is used less often and gives a different surface and handfeel; in jeans, it is chosen partly because it affects how the fabric relaxes and whether the leg twists after washing. If you are working on denim, the direction is a specification point worth asking about.
Twill structures compared
| Structure | Description | Look and feel | Typical use |
|---|---|---|---|
| 2/1 twill | Weft over two warp, under one | Fine diagonal, firm, flexible | Chinos, shirts, jackets, caps |
| 2/2 twill | Over two, under two; balanced both sides | Even diagonal on both faces | Suiting, lightweight shirting, linings |
| 3/1 twill | Weft over three warp, under one | Strong diagonal, smoother, drapier | Drill, workwear, denim |
| Steep twill (gabardine) | Close, steep diagonal on fine yarns | Tight, smooth, hard-wearing | Trousers, trench coats, uniforms |
| Herringbone | Twill that reverses direction in stripes | V-shaped zigzag pattern | Jackets, overshirts, trousers |
General descriptions. Names such as drill and chino are used loosely between mills, so always ask for the construction and weight.
Twill Fabric Families: Drill, Chino, Gabardine, Denim and Herringbone
Many fabrics that buyers meet by trade name are twills. The names describe a combination of weave, weight and finish rather than a single fixed standard, so treat them as starting points for a conversation with your mill or factory.
- Drill: a firm 3/1 cotton twill, typically medium to heavy weight, used in workwear, uniforms and casual trousers.
- Chino: a lighter, smoother cotton twill, often finished with a soft hand, used for chinos, shorts and casual jackets.
- Gabardine: a tightly woven steep twill in fine yarn, wool, cotton or synthetic, known for a clean surface and durability.
- Denim: a warp-faced twill, usually 3/1, with indigo-dyed warp yarns and undyed weft yarns. See our types of denim fabric.
- Herringbone: a broken twill where the diagonal reverses at intervals to create a zigzag, common in jackets and casual trousers.
A practical point: fabrics sold as drill or chino by one mill may differ in weight and handfeel from the same name at another. Always request a swatch and a stated GSM before you design around a name.
Twill vs Plain Weave vs Satin: How Weave Changes Performance
Weave is one of the three big levers on how a woven fabric behaves, alongside fibre and yarn. Comparing twill with plain weave and satin shows what the weave itself contributes. The ratings below are indicative and assume the same fibre and a similar weight.
Plain weave, twill and satin compared
1 dot = low, 5 dots = high
| Plain weave | Twill | Satin | |
|---|---|---|---|
| Durability and tear resistance | ●●●●● | ●●●●● | ●●●●● |
| Drape and flexibility | ●●●●● | ●●●●● | ●●●●● |
| Resistance to wrinkles | ●●●●● | ●●●●● | ●●●●● |
| Hiding of stains and wear | ●●●●● | ●●●●● | ●●●●● |
| Resistance to snagging | ●●●●● | ●●●●● | ●●●●● |
| Smoothness and sheen | ●●●●● | ●●●●● | ●●●●● |
Indicative ratings based on typical fabric/process characteristics, not laboratory results.
Plain weave is simple and crisp, and resists snagging well. Satin is smooth and glossy, but its long floats snag and wear. Twill sits in the middle: strong, flexible and tolerant of everyday use, which is why it became the standard cloth for trousers and workwear. Our guides to canvas fabric and poplin fabric cover the main plain-weave alternatives.
Twill Fabric Weight: Typical Bands by Garment
Twill is made in a wide weight range, from fine shirting to heavy workwear cloth. Weight is expressed in grams per square metre (GSM) or, especially for denim and canvas, ounces per square yard. Weight affects drape, warmth, durability and the way a garment holds seams and pockets, so it should be set early in the design.
Typical twill fabric weight by garment
Grams per square metre
Typical ranges, varies by product, fibre and mill. Treat these as starting points and confirm a stated weight with every swatch.
Heavier twill is not automatically better. A very heavy fabric can feel stiff, wrinkle in sharp creases and be harder to sew cleanly at pockets and waistbands. Choose the lightest weight that still delivers the durability and look the garment needs. If you are working in ounces, divide the GSM by 33.9 to get ounces per square yard.
What Twill Fabric Is Used For
Twill is one of the most versatile woven structures, and its use varies as weight and finish change. The table below shows the most common categories and what each demands from the cloth.
Twill fabric uses by garment
| Garment | Typical twill type | What matters most |
|---|---|---|
| Chinos and casual trousers | Lightweight to medium cotton twill, often with a little elastane | Soft hand, colour retention, shape recovery |
| Work trousers and jackets | Heavier cotton or poly-cotton drill | Abrasion resistance, seam strength, colour fastness |
| Shirts and overshirts | Light twill, brushed or plain | Softness, drape, easy ironing |
| Jeans and denim jackets | 3/1 twill in indigo-dyed cotton | Weight, fade character, shrinkage control |
| Caps and bags | Medium twill, sometimes stiffened | Shape holding and print or embroidery quality |
| Uniforms and corporate wear | Poly-cotton twill | Easy care, repeat washing, consistent colour |
Common starting points only. Final choice depends on fit, price point and care requirements.
For uniform programmes and branded workwear, our corporate clothing and workwear guide goes through the commercial side. Where a garment must meet a safety standard, such as certified high-visibility or flame-retardant clothing, that is outside the core of what we make, and you should work with a specialist PPE manufacturer who can supply the certification.
Finishing: Mercerising, Brushing, Sanforising and Garment Washes
Finishing is how a mill or factory shapes the final look and handfeel of twill fabric. Many finishes can be chosen separately, so name the ones you want rather than assuming them.
- Mercerising: treating cotton with caustic soda under tension to improve lustre, strength and dye uptake.
- Sanforising: a mechanical process that compresses the fabric so that it shrinks less when washed.
- Brushing or peaching: raising a fine nap on the surface for a soft, warm feel.
- Garment washing: washing the finished garment, with enzymes, softeners or stones, to relax the fabric and soften the colour.
- Resin or easy-care finishes: chemical treatments to reduce creasing; ask what they contain and how they affect handfeel and breathability.
Each finish changes the fabric and often adds cost. Ask for the finish to be listed on the swatch card, and check that your wash and care instructions suit it.
Cutting, Sewing and Care: How Twill Behaves
Twill is forgiving to sew compared with many fabrics, but a few habits make a difference. The diagonal means the fabric has a slight directional character, so pattern pieces should all be cut with the same grain direction to avoid shade or surface differences between panels. Heavy twill needs a larger needle and a suitable stitch length, and bulky seams at belt loops and pockets should be planned in the pattern.
Shrinkage depends on the fibre and the finish. Cotton twill that has not been pre-shrunk can change length and width after the first wash, which is why mills sanforise or garment-wash. Test dimensional change and colour fastness on the exact fabric and trim combination. Our garment testing guide lists the checks, including tear strength, seam slippage and abrasion, that matter for twill garments.
For care, most cotton twill tolerates a warm machine wash. Dark and saturated colours can crock (rub off) or fade, so wash them inside out and avoid harsh detergents. Garment-dyed twill softens and fades by design, so confirm that this is the look you want.
How to Specify Twill Fabric: Steps and Checklist
A clear specification saves rounds of sampling. Work through the decisions in order, from end use to approval, and write each answer into the tech pack or fabric brief.
Five steps to specify twill
- 1Define the garmentSay what it is, how it is worn and the care it will get.
- 2Choose fibre and structureCotton, poly-cotton or cotton-elastane; 2/1, 3/1 or a named family.
- 3Set weight and handState a target GSM with a tolerance and describe the feel you want.
- 4Name the finishMercerised, brushed, sanforised, garment-washed or garment-dyed.
- 5Sample and testApprove a swatch, then test shrinkage, fastness and tear strength on the sample.
Once those decisions are made, turn them into a written list the factory can quote and test against. The checklist below covers what a complete twill fabric specification normally includes.
Twill fabric specification checklist
- Composition in percentages, including elastane if used
- Weave, such as 2/1 or 3/1, and direction if it matters
- Target weight in GSM with an agreed tolerance
- Colour reference and the approval method (lab dip, then bulk)
- Finish list and any pre-shrinking or garment-wash step
- Shrinkage target and test method
- Abrasion, tear and seam-slippage requirements if relevant
- Care label instructions matched to the finish
Adapt the list to the product. Ask your factory which tests it can run.
How Ruhrose Approaches Twill Fabric
Ruhrose develops denim and woven cotton casualwear, including trousers, shorts and jackets in twill, with production in Bangladesh and UK buyer support. We help you pick a weave, weight and finish against your price point, then sample before bulk. Certified workwear and PPE are outside our core, and we will tell you if a brief points there. If your range includes jeans, our denim weave types guide is the best next read.