How a leather jacket should fit: shoulders, sleeves, chest and length
A leather jacket that fits well looks expensive even when it isn’t. One that fits badly looks wrong at any price, and unlike a cotton jacket, leather is hard and costly to alter. So it pays to get the fit right before you buy.
The rule to remember: leather stretches a little in width with wear, but never in length. Buy for shoulders and length first; a snug chest is fine.
The five-point fit check
1. Shoulders
The shoulder seam should sit right at the edge of your shoulder bone. If the seam hangs down your arm, the jacket is too big, and that can’t be fixed. If it sits inward and pulls across your upper back, it’s too small.
2. Chest and body
Zip or button it up. You should be able to fit a thin sweater or flat hand inside, but no more. Pulling “X” creases around the zip or buttons means it’s too tight. Lots of loose leather around the chest and waist means it’s too big; leather won’t shrink back.
3. Sleeves
With your arms relaxed at your sides, the cuff should land at your wrist bone, or just past it toward the base of your thumb. Then reach forward as if holding a steering wheel: the cuffs shouldn’t ride more than a few centimetres up your forearm. Sleeves shorter than this only get worse, because the arms crease and shorten slightly with wear.
4. Armholes
High, close armholes look sharper and let you move your arms without the whole jacket lifting. If raising your arm drags the hem up past your belt, the armholes are cut too low or the jacket is too small.
5. Length
Length depends on the style:
| Style | Where the hem should sit |
|---|---|
| Biker / motorcycle | At or just above the belt |
| Bomber or flight jacket with a rib waistband | At the natural waist or belt line |
| Café racer | At the belt line |
| Trucker / shirt-style jacket | Around the top of the hip |
| Car coat or three-quarter | Mid-thigh |
A biker jacket that covers your backside looks oversized; a trucker jacket that stops at the waist looks shrunk.
How to measure yourself
You need a soft tape measure and, ideally, a second person.
- Chest: around the fullest part of your chest, under the armpits, tape level and snug but not tight. Breathe normally.
- Shoulders: across your back from the outer edge of one shoulder bone to the other.
- Sleeve: from the shoulder edge, over a slightly bent elbow, to the wrist bone.
- Back length: from the base of your collar (the bone at the back of your neck) down to where you want the hem.
Compare these with the brand’s garment measurements, not just “S, M, L”. A good maker lists the jacket’s own chest width, shoulder width, sleeve and length.
Rough US and Canada size guide
Sizes vary between brands, so treat this as a starting point.
| Size | Body chest (inches) | Body chest (cm) |
|---|---|---|
| S | 36–38 | 91–97 |
| M | 38–40 | 97–102 |
| L | 42–44 | 107–112 |
| XL | 46–48 | 117–122 |
| 2XL | 50–52 | 127–132 |
If you fall between sizes, size down for a fitted biker or café racer jacket, and up for a shearling or anything you’ll wear over a thick sweater.
How the leather affects fit
- Cowhide starts firm and gives slightly at the elbows and shoulders over a few weeks of wear. A snug fit on day one becomes comfortable.
- Lambskin is soft from the start and relaxes the most. Buy it close-fitting.
- Goatskin sits in between.
- Shearling has wool inside that takes up room, so it runs small. Try it on over the layers you’ll actually wear.
Read more in our guide to cowhide vs lambskin vs goatskin.
How jackets are patterned
Each jacket is cut from a set of paper or card patterns, one per size. Moving up a size typically adds a few centimetres to the chest and a smaller amount to the shoulders and sleeves, which is why a size up can feel roomy in the body but still short in the arm. If your arms are long for your build, look for makers who offer long sleeve or tall options, or made-to-measure.
Fit checklist before you buy
- Shoulder seam at the edge of the shoulder bone
- A thin layer fits underneath when closed, with no pulling creases
- Cuffs at the wrist bone, and they stay near it when you reach forward
- Hem in the right place for the style
- You can lift your arms without the whole jacket riding up
Get those five right and the leather will do the rest.