How to Find the Right Jacket Fit and Size

A leather jacket should fit snug but not tight: you can breathe, zip it without forcing it and move your arms freely. Get there in three steps. Measure your body, match those numbers to the maker's size chart, then check the fit on the parts that matter for your style of jacket.

Size labels are not universal, so a Medium from one brand can fit like a Small from another. That is why this guide starts with a tape measure, not a letter.

Key takeaways- Jackets are sized by chest: chest girth for men, bust girth for women.- Measure chest, waist and sleeve, then compare with the chart rather than trusting S, M or L.- Leather softens with wear but does not change size much, so do not buy small and hope it stretches.- Riding jackets need a test in riding position and over your winter layers.

Step 1: Measure your body

Your chest is the number that sets your jacket size. Both the European sizing standard and the old U.S. men's system build jacket sizes around it. Waist, sleeve and height then fine-tune the choice.

The step-by-step method, with tape positions for chest, sleeve, shoulders and length, is in how to measure for a jacket size. Waist is the measurement people get wrong most often, so it has its own page: how to measure your waist for a jacket. Riders can follow how to measure for a motorcycle jacket.

Step 2: Read the size chart

Most leather jacket charts give one row per size, with a U.S. number, an EU number and a letter size side by side. On a men's chart, U.S. jacket sizes run 10 lower than EU sizes, so a US 40 is an EU 50.

Read which columns are body measurements and which are jacket measurements before you compare. Leather Collection's chart, for example, lists body measurements only.

Planning in French? See a guide to jacket sizing and men's jacket sizing guide.

Step 3: Check the fit for your jacket style

Each cut has its own fit rules. A biker jacket and a bomber can both be "your size" and still sit very differently.

Bomber and flight jackets

Bombers are short, with ribbed cuffs and hem that sit snug at the wrist and waist. Style writers disagree on where the hem should land: some say on the hip, others at or just below the waistband.

• Fit check by body zone: how should a bomber jacket fit?
• Men's builds and proportions: how a bomber jacket should fit a man
• Hem position only: where should a bomber jacket sit?
• Picking the size number: bomber jacket sizing

Biker and motorcycle jackets

On the bike, fit is also about where the armor sits. Too tight can pull armor off the joint; too loose lets it shift. Sleeves should still reach your wrists with your arms out to the bars.

• Full men's and women's riding chart: see the motorcycle chart in the table above.
• Women's cuts: women's biker jacket sizing guide

Cropped jackets

A cropped cut changes where the hem and waist should fall. See how a cropped leather jacket should fit.

Tight, snug or loose: what "right" feels like

Snug is the target. A jacket is too tight if your breathing feels restricted, your shoulders are pulled back or the zipper is under strain. It is too loose if the leather folds and flaps, which on a motorcycle also lets armor move.

Do not count on stretch. Break-in makes leather more comfortable, but a jacket that is too tight in the shop stays too tight. If you plan on layering a hoodie or thermal under it, try it on with that layer.

When standard sizes do not fit

Some bodies sit between rows on any chart: long arms with a slim chest, or a broad chest with a short torso. Made-to-measure is one answer.

Leather Collection custom leather jackets come in standard sizes US 32-50 (EU 42-60) or are cut to your own measurements. Sleeves, waist, length and chest are cut to your body, and a consultant checks the numbers before cutting.

FAQ

Should a leather jacket be fitted?

Yes, snug but not restrictive. You should be able to raise your arms, breathe normally and close the zip without forcing it.

Do leather jackets get looser over time?

Only a little. Leather softens and becomes more comfortable at the shoulders and elbows, but it does not change size significantly.

Is it better to size up or down in a leather jacket?

Neither by default. Measure and match the chart, then size up only for planned thick layers, and only if the shoulders still fit.

Should I size up for a motorcycle jacket?

Not automatically. Try it over your heaviest riding layer and in riding position; if you can move freely and the armor stays put, your normal size is right.