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What Is Twill Fabric? The Diagonal Weave Behind Denim and Chinos

October 27, 2026

Twill is one of the three basic weaves, identified by a visible diagonal line created when weft threads pass over two or more warp threads in a stepped pattern. That structure makes twill strong, wrinkle resistant, and better at hiding soil than plain weave. Denim, chino, tweed, and gabardine are all twills. This guide explains the weave, the common types, and how to choose and care for them.

Reading the diagonal

The diagonal line, called a wale, runs at about 45 degrees and can angle left or right depending on the loom setup. Run a finger across a pair of jeans and you can feel it. The steeper and more pronounced the diagonal, the heavier and more rugged the fabric usually is.

Think of this step as the part of what is twill fabric? the diagonal weave behind denim and chinos that pays off every time you do it consistently. Small details compound: the order you work in, the tools you choose, and the habit of checking your result before moving on all matter more than any single product or shortcut. When something goes wrong, it usually traces back to rushing this stage or skipping the check, so slow down here and let the rest of the process get easier.

Why twill is durable

More yarn is packed into the surface and the interlacing pattern spreads stress, so twill resists abrasion and tearing. That is why workwear, uniforms, and upholstery lean on twill. It also drapes better than plain weave at the same weight, so trousers hang cleanly instead of standing stiff.

Think of this step as the part of what is twill fabric? the diagonal weave behind denim and chinos that pays off every time you do it consistently. Small details compound: the order you work in, the tools you choose, and the habit of checking your result before moving on all matter more than any single product or shortcut. When something goes wrong, it usually traces back to rushing this stage or skipping the check, so slow down here and let the rest of the process get easier.

Common twills you own

Denim is a warp faced cotton twill with indigo warp and white weft. Chino is a lighter mercerized cotton twill. Gabardine is a tight worsted twill that sheds light rain. Knowing the family helps you predict care. Cotton twills wash easily and soften with wear. Wool gabardine wants gentler handling and benefits from airing between wears.

Think of this step as the part of what is twill fabric? the diagonal weave behind denim and chinos that pays off every time you do it consistently. Small details compound: the order you work in, the tools you choose, and the habit of checking your result before moving on all matter more than any single product or shortcut. When something goes wrong, it usually traces back to rushing this stage or skipping the check, so slow down here and let the rest of the process get easier.

Care and repair

Twill hides wear well and repairs cleanly because the diagonal pattern camouflages stitching. Wash cotton twills inside out to protect the surface, and mend small tears early before the diagonal starts to run. A patch in matching twill nearly disappears.

Think of this step as the part of what is twill fabric? the diagonal weave behind denim and chinos that pays off every time you do it consistently. Small details compound: the order you work in, the tools you choose, and the habit of checking your result before moving on all matter more than any single product or shortcut. When something goes wrong, it usually traces back to rushing this stage or skipping the check, so slow down here and let the rest of the process get easier.

Keep reading on this site: What is hemp fabric, What is poplin fabric, What is corduroy fabric. Each of those pieces connects to the ideas above and gives more detail on the parts this guide could only summarize.

Frequently asked questions

What is the difference between twill and plain weave?

Plain weave crosses one thread over one, giving a flat grid. Twill steps over two or more, creating the diagonal and a stronger, more drapable cloth.

Is twill good for summer?

Light twills like chino breathe fine in summer. Heavy denim twill is warm. Weight matters more than weave for heat.

Does twill wrinkle?

Less than plain weave of the same fiber. The structure springs back, which is why twill trousers look presentable after a day of sitting.

How do I identify twill at a store?

Look for the diagonal rib in raking light and feel for it with a fingertip. If the lines run corner to corner, it is twill.