Size Guide

Start with your body measurements, then compare the jacket dimensions. Fit varies by style; our team can help before you order.

Men’s Size Guide

Men’s Sizing

Our men’s jackets are designed for a modern, tailored fit. Measure your chest and match it to the body measurement chart below.

Size US Size Chest (IN) Chest (CM)
XS 34 37 – 38 94 – 97
S 36 39 – 40 99 – 102
M 38 41 – 42 104 – 107
L 40 43 – 44 109 – 112
XL 42 45 – 46 114 – 117
XXL 44 47 – 48 119 – 122
XXXL 46 49 – 50 124 – 127
Men’s Regular FitIdeal for heights between 5’7” and 6’0” (170–183cm). If you plan to layer over a hoodie, size up.
Size Chest (IN) Shoulder (IN) Sleeve (IN) Length (IN)
XS 43 19 26 25.5
S 45 19.5 26.25 25.5
M 47 20 26.5 26.5
L 49 20.5 26.75 26.5
XL 53 21 27 27.5
XXL 55 21.5 27.25 27.5
XXXL 57 22 27.5 28
Jacket MeasurementsThese are the actual jacket dimensions, not your body measurements. Your body chest should be 4–6 inches less than the jacket chest for a standard fit.
Women’s Size Guide

Women’s Sizing

Our women’s jackets are designed for a fitted, flattering silhouette. Measure your bust and match it below.

Size US Size Bust (IN) Waist (IN) Hip (IN)
XS 4 33 – 34 27 – 28 37 – 38
S 6 35 – 36 29 – 30 39 – 40
M 8 37 – 38 31 – 32 41 – 42
L 10 39 – 40 33 – 34 43 – 44
XL 12 41 – 43 35 – 37 45 – 47
XXL 14 44 – 46 38 – 39 48 – 49
XXXL 16 47 – 49 40 – 42 50 – 52
Women’s Regular FitIdeal for heights between 5’3” and 5’8” (160–173cm). If you are between sizes, size up for a more comfortable fit.
Size Bust (IN) Waist (IN) Shoulder (IN) Sleeve (IN) Length (IN)
XS 37 33 15 24 20.75
S 39 35 15.5 24.25 21.25
M 41 37 16 24.5 21.75
L 43 39 16.5 24.75 22.25
XL 46 42 17.25 25 22.75
XXL 49 45 18 25.25 23.25
XXXL 52 48 18.75 25.5 23.75
How To Measure

Measuring Your Body

Use a soft measuring tape for accurate measurements. Measure over light clothing or directly on skin.

1. Chest / Bust

Measure around the fullest part of your chest or bust, keeping the tape parallel to the floor. Do not pull too tight.

2. Waist

Measure around the narrowest part of your natural waist, typically about an inch above your belly button.

3. Shoulder

Measure from the edge of one shoulder across to the other, straight across the upper back.

4. Sleeve

For sleeve measurements, contact our sizing team with the jacket style before comparing with the chart.

Fit Tips

Getting The Right Fit

Measure your chest, not your usual clothing size — jacket sizing varies by brand and style. Always go by measurements.

If you plan to layer — over a hoodie or thick jumper — size up one size for a comfortable fit over layers.

Leather stretches slightly — over time, real leather will mould to your body and ease slightly. Choose a comfortable fit that allows you to move; do not rely on stretching to correct a jacket that is too small.

Still unsure? — Contact us at support@nsmjackets.com with your measurements and we will help you choose a suitable size before you order.

How to Find Your Size

Fit varies by style. Use the measurements in the chart rather than relying on your usual clothing size. Measure yourself against the chart on this page, or compare to a jacket you already own for the closest match.

To measure chest size, wrap a tape measure under your arms at the fullest part of your chest, keeping it level and snug but not tight. For sleeve measurements, contact our sizing team with the jacket style before comparing with the chart. If you're between sizes, we generally recommend sizing up for a more relaxed fit, especially for biker and bomber styles meant to be worn with a layer underneath.

Still unsure? Reach out through Contact Us before ordering, and our Return & Exchange policy has you covered if the fit isn't right.

Frequently Asked Questions

Compare your body measurements with the chart rather than relying on your usual US or UK size. Fit varies by jacket style; our team can help you choose before you order.

If you plan to layer a hoodie or heavier knitwear underneath, sizing up by one size is a common choice for fitted cuts.

Contact our team within 30 days of delivery to request a return. The jacket must meet the eligibility conditions in our refund policy. To change size, contact our returns team to arrange an exchange and confirm replacement availability and timing.

The fur lining adds a small amount of bulk, so if you're between sizes on a shearling style, sizing up is usually the safer choice.

Use this general chart as a starting point. For measurements or fit advice for a particular jacket, contact our team with the product name before ordering.