Duck Canvas, Denim and Drill
Duck canvas, denim and cotton twill are three common workwear cloths. This guide explains how each one behaves and ages, which wear is acceptable and which wear is a fault.
In this guide
Workwear is commonly made from three cloths: duck canvas, denim and cotton twill. Knowing the cloth helps to predict how a garment ages, what tends to fail and whether wear is acceptable or damage.
Duck canvas
Duck canvas is a heavy plain-weave cotton and the signature cloth of Carhartt.
How it behaves. Duck canvas is stiff when new. With wear it softens, and the softening is permanent. A jacket that has been worked in drapes closer to the body without measuring smaller, which is why two jackets with identical measurements can feel a size apart.
How it ages. Duck canvas thins with wear, and colour fades unevenly, concentrating at the elbows, cuffs and the front edges where the garment folds.
What to check. Hold the cloth to the light at the elbows and the seat. Even thinning is acceptable, and light coming through the cloth is a fault. The seams are the next check, because stitching tends to fail before the duck does.
Where it is found. Duck canvas is found mainly in Carhartt jackets and bib overalls.
Denim
Denim is a twill weave, usually with an indigo warp and a white weft, which produces its characteristic fading.
How it behaves. Creases at the hips, knees and hems lighten first because the indigo sits on the surface of the yarn and abrades away. This is normal behaviour of the material and not damage.
How it ages. Denim ages predictably and slowly, provided it is not washed hot. Shrinkage on older denim has usually already happened, although a lightly used pair can still shrink on a first hot wash.
What to check. The crotch and the inner thigh are the first places to check, because friction concentrates there and repairs are common. The back pockets and the hem come next. A repair is acceptable on workwear when it is described in the item text.
Where it is found. Denim is found across bottoms and in Carhartt and Dickies jeans.
Cotton twill and drill
Cotton twill and drill are the cloths of work trousers. They are lighter than duck canvas and smoother than denim, woven with a diagonal rib.
How it behaves. Twill tends to hold its shape and its colour. Where duck canvas softens and denim fades, twill changes less.
How it ages. Twill creases, and the creases can set. Black twill can shift slightly warm with age and sun exposure, so a pair that looks brown-black in daylight has often had a lot of both.
What to check. Check the knees and seat for thinning, and compare the two legs for colour drift. Twill can also take a permanent shine at points of heavy friction.
Where it is found. Twill is found mainly in Dickies trousers.
Duck canvas softens, denim fades and twill keeps its shape.
Leverene
Other cloths
Corduroy is found across workwear and casual clothing alike. Its failure point is the pile, which flattens permanently at the seat and the inner thigh. Running a hand against the nap shows it.
Leather is found mostly in heavy outerwear such as Schott. The lining and the stitching tend to fail before the hide does, and leather needs conditioning instead of washing.
Flannel and heavy cotton shirting tend to wear at the collar and cuffs first, as a dress shirt does.
Reading wear by fabric
| Cloth | Wear that is acceptable | Wear that is a fault |
|---|---|---|
| Duck canvas | Fade, softening, even thinning | Light through the cloth, split seams |
| Denim | Crease fade, whiskering, described repairs | Blown crotch, thinned inner thigh |
| Cotton twill | Set creases, minor sheen | Knee thinning, colour drift between legs |
| Corduroy | Slight nap softening | Flattened pile at seat or thigh |
| Leather | Patina, creasing | Cracked finish, failed lining or stitching |
Caring for each cloth
In short, duck canvas and twill are washed cool and air dried, and washed less often rather than more. Denim is washed rarely and cold, inside out. Corduroy is washed inside out to protect the pile. Leather is not washed.
The full method for each material is in the guide to washing and caring for pre-owned clothing.
Where to start
Current items are collected under workwear, with separate pages for men and women.
The brands are covered in the Dickies guide and the Carhartt guide.
Sources
- Fabric behaviour described here is general textile knowledge: duck canvas as a heavy plain-weave cotton that softens with use, denim as an indigo-warp twill that fades at abrasion points, and cotton twill and drill as diagonal-rib weaves that hold shape and colour. No brand-specific or dated claims are made.
- Brand and category associations reflect the composition of the leverene collections, August 2026.
