Carhartt Pants: A Practical Guide to Fits, Fabrics and Used Pairs

Carhartt pants come in about six main cuts, and most of the confusion starts with the names. A pair labelled B01, a Double Knee and a Carpenter can look nearly identical on a hanger, yet they sit and fall very differently. This guide sorts them out and explains what to look for when you buy used.

The main Carhartt pants models

Work lines and Work In Progress (WIP) lines are separate things. The first is built for job sites, the second is cut for streetwear and usually runs slimmer with a higher price.

• Double Knee (B01): straight, loose leg, doubled fabric on the front of the knees. The classic.
• Carpenter: a hammer loop and ruler pocket on the side. Roomy through the thigh.
• Cargo: large side pockets, often in ripstop or twill. More relaxed again.
• Single Knee: one layer of fabric, lighter and cleaner looking.
• Simple, Regular Cargo and Aviation: WIP cuts, tapered and closer to the body.

If you want one pair that works everywhere, the Double Knee is the safe pick. The Simple or Aviation suits anyone who finds work cuts too baggy.

Fabric and weight: what the label tells you

Most older pairs are made of duck canvas or Dearborn canvas, usually 12 oz (around 400 g per square metre). That is heavy. Expect a stiff first month and a lot of softening afterwards, which is the whole appeal.

Lighter twill and ripstop versions weigh closer to 8 to 9 oz. They break in faster and suit warm weather. Rigid denim-style canvas fades at the seams and knees, so no two worn pairs look alike.

Sizing Carhartt pants

Sizes are given in waist and inseam, for example 32 x 32. Work pants are cut generously, and many people size down by one in the waist if they want a cleaner fit. WIP models are closer to true size, sometimes a little snug in the thigh.

Canvas shrinks. A pair washed hot can lose 1 to 2 cm in length, which matters if the inseam is already tight. Measure flat: waist across, then double it, and check the inseam from crotch to hem. Vintage tags often lie by an inch or two after years of wear and washing.

Buying second-hand Carhartt pants

Used pairs are easy to find, and prices vary a lot. Plain work pants often sit around 30 to 60 euros, while older made-in-USA pairs or WIP models can reach 80 to 150 euros. These are indicative ranges only.

Check these points before you commit:

• The crotch and inner thigh seams, where canvas wears through first.
• The hems, which fray at the back from being walked on.
• The zip and the top button, since replacing them costs more than people expect.
• Paint, oil or bleach stains, which can be permanent.
• The tag: a made-in-USA label usually points to a pair from before the early 2000s.

Honest fading is fine and often desirable. Holes at the knee are repairable. A split crotch seam on a heavy pair usually is too, but it is a bargaining point.

Styling and care for Carhartt pants

Baggy canvas pants pair well with a boxy tee and chunky sneakers. A heavy sweatshirt such as a Stussy hoodie keeps proportions balanced, because the volume sits on top as well as below. For warmer months, Carhartt shorts use the same canvas in a more practical length.

Wash cold or at 30 degrees, inside out, and hang dry. Skip the dryer if you want to keep the length. Washing every few wears is enough, as heavy canvas does not need constant cleaning and fades faster when you overdo it.

If you prefer a dressier, sharper look, the contrast is large. A pair of Dsquared2 jeans gives a slim, distressed shape, while Carhartt pants stay loose and utilitarian. Choose based on how much room you want, not on brand status.

Frequently Asked Questions

Do Carhartt pants run big?

Work lines usually do, especially through the thigh and seat. Many buyers drop one waist size. WIP lines are closer to standard sizing.

What is the difference between B01 and B136?

B01 is the Double Knee in 12 oz duck canvas. B136 is the Double Front version of the same idea, often in a slightly different fabric. Both are tough, but the B01 is the more common cut and easier to find used.

How can I tell if a pair is vintage?

Look for a made-in-USA tag, a thicker canvas feel and a metal zip with a worn finish. Older tags have simpler printing and a rougher font. A faded, softened fabric helps too, though it is not proof on its own.

Will Carhartt pants shrink?

Yes, a little, mostly in length. Wash cold and air dry to keep shrinkage under about 1 cm. Raw canvas shrinks more than pre-washed pairs.

Are they warm enough for winter?

Heavy canvas blocks wind well, but it is not insulated. Wear thermal leggings underneath, or choose a lined version if you are outside for hours.