Jacket & Vest Size Guide

Measure your body, compare a jacket you already own, and check the exact fit of the style you plan to order.

Start with your measurements

Estimate a reference size

Enter your body chest and waist measurements for a starting point from the existing planning chart. This estimator does not use the male/female regional references below; compare those separately before confirming your product's fit.

Chest (in)

Waist (in)

A level measuring tape wrapped around the fullest part of the chest, just below the armpits.

How to measure chest

A measuring tape wrapped around the natural waist above the trouser waistband.

How to measure waist

Your starting point

Measure first

Enter your chest and waist to see a reference size.

Confirm a product's fit

US, UK and European size references

US, UK and European conversions with body measurements for jacket and vest sizing. These Belstaff references are not Jacketee product specifications. Size labels and European systems vary by brand; compare measurements and confirm your chosen style with our team.

Men — regional reference sizes and body measurements (in)
Size	US	UK	EU / Italy	Chest	Waist
XS	34	34	44	35.43	30.91
S	36–38	36–38	46–48	37.01–38.58	32.48–34.06
M	38–40	38–40	48–50	38.58–40.16	34.06–35.63
L	40–42	40–42	50–52	40.16–41.73	35.63–37.2
XL	42–44	42–44	52–54	41.73–43.31	37.2–38.78
2XL	44–46	44–46	54–56	43.31–44.88	38.78–40.35
3XL	46–48	46–48	56–58	44.88–46.46	40.35–41.93

Reference: Belstaff official size guide. Checked 10 October 2026. 2XL is shown as XXL in the source. These are body circumferences, not flat garment widths. For longer jackets and vests, check the hip measurement too.

Body measurements

Reference body size chart

Chest and waist are measured around your body. Sleeve and back length are separate reference lengths; ask our team to confirm their measuring points before using them. The supplied chart is a planning reference and has not been verified against every Jacketee product.

See illustrated body measurement steps

Swipe the chart sideways to see every measurement.

Size	Chest	Waist	Sleeve	Back length
XXS	28-30	20-22	28-29	23
XS	30-32	24-26	30-31	24
S	34-36	28-30	31-32	25
M	38	32	32	26.5
M/Tall	38	32	33-34	28
L	40-42	34-36	33-34	27.5
L/Tall	40-42	34-36	35-36	29
XL	44-46	38-40	34-35	28.5
XL/Tall	44-46	38-40	36	30
2XL	48-50	42-44	35-36	29.5
2XL/Tall	48-50	42-44	37	31
3XL	52-54	46-48	36-37	30.5
4XL	56-58	50-52	37-38	31.5
5XL	60-62	54-56	38-39	32.5
6XL	64-66	58-60	39-40	33.5

Finished garment

Reference jacket size chart

A jacket laid flat with arrows showing chest width, shoulder width, sleeve length, and collar-base-to-hem length.

Close a jacket you already own and lay it flat without stretching. Chest is measured straight across from armpit to armpit; double this width for the garment's full circumference. These finished-garment values are reference measurements, not product-specific Jacketee specifications.

See illustrated jacket measurement steps

Swipe the chart sideways to see every measurement.

Size	Chest, flat	Sleeve	Across shoulder	Half shoulder	Back length
XXS	18	24	16	6	23
XS	20	24.5	17	6.25	24
S	22	25	18	6.5	25
M	24	25.5	19	6.75	26.5
M/Tall	24	27	19	6.75	28
L	26	26	20	7	27.5
L/Tall	26	27.5	20	7	29
XL	28	26.5	21	7.25	28.5
XL/Tall	28	28	21	7.25	30
2XL	30	27	22	7.5	29.5
2XL/Tall	30	28.5	22	7.5	31
3XL	32	27.5	23	7.75	30.5
4XL	34	28	24	8	31.5
5XL	36	28.5	25	8.25	32.5
6XL	38	29	26	8.5	33.5

Reference vest size chart

Men — regional reference sizes and body measurements (in)
Size	US	UK	EU / Italy	Chest	Waist
XS	34	34	44	35.43	30.91
S	36–38	36–38	46–48	37.01–38.58	32.48–34.06
M	38–40	38–40	48–50	38.58–40.16	34.06–35.63
L	40–42	40–42	50–52	40.16–41.73	35.63–37.2
XL	42–44	42–44	52–54	41.73–43.31	37.2–38.78
2XL	44–46	44–46	54–56	43.31–44.88	38.78–40.35
3XL	46–48	46–48	56–58	44.88–46.46	40.35–41.93

Reference body measurements for vest sizing. These are the same chest and waist ranges used on our full size-guide page. Confirm the finished dimensions for your chosen vest before ordering.

Reference body measurements (in)
Size	Chest	Waist
XXS	28-30	20-22
XS	30-32	24-26
S	34-36	28-30
M	38	32
L	40-42	34-36
XL	44-46	38-40
2XL	48-50	42-44
3XL	52-54	46-48
4XL	56-58	50-52
5XL	60-62	54-56
6XL	64-66	58-60

To measure a vest, close it and lay it flat. Measure chest width from armpit to armpit and back length from the base of the collar to the hem. A vest has no sleeve measurement.

Fit checklist

How to measure

For the female reference, measure bust around the fullest point with the tape level. For jackets and vests that cover the hips, measure around the fullest part of your hips without pulling the tape tight.

Use a soft tape for your body and a jacket you like for garment measurements. Record every measurement in the same unit.

Body measurement

01 · Body chest

Stand naturally in a light, close-fitting top.
Wrap a soft tape around the fullest part of your chest, just below your armpits.
Keep the tape level and snug without squeezing. Breathe normally and record the measurement.

Body measurement

02 · Natural waist

Find your natural waist between your lower ribs and the top of your hips.
Wrap the tape around this point, keeping it level. Your trouser waistband may sit lower.
Relax your stomach and record the measurement without pulling the tape tight.

A jacket laid flat with a measuring tape from the shoulder seam to the end of the cuff.

Finished jacket

03 · Jacket sleeve

Lay a jacket that fits you well on a flat surface and smooth the sleeve.
Measure from the shoulder seam to the very end of the cuff, including the ribbing.
Compare with the finished jacket chart. Confirm the separate body-chart sleeve measuring points with our team.

The back of a flat jacket with a tape across the upper back between the shoulder seams.

Finished jacket

04 · Across shoulder

Lay your jacket flat with its back facing up.
Measure straight across the upper back from one shoulder seam to the other.
Keep the jacket relaxed and compare with the across-shoulder column in the jacket chart.

The back of a flat jacket with a vertical tape from the base of the collar to the bottom of the waistband.

Finished jacket

05 · Back length

Lay your jacket flat with its back facing up.
Measure down the center back from the base of the collar to the bottom of the waistband.
Include the waistband, exclude the collar, and compare with the finished jacket chart.

Half shoulder: This is a separate reference measurement, not half of the across-shoulder value. Ask our team for its measuring points for your chosen jacket.

Tall entries appear only where listed in the reference chart. Availability and actual dimensions vary by product.

Sizing questions

Jacket sizing FAQs

View all FAQs

Yes, we do. All of our jackets follow Standard American Unisex sizing, check our size guide. If you normally wear a medium in the United States, order a medium from us.

If your measurements are different, just choose the closest size. For an extra $20, we can adjust the jacket to your exact measurements and make a custom-sized varsity or bomber jacket.

All of our varsity jackets are true to size and we have an accurate sizing chart. Our jackets do not run small. However you can request a size sample before making any purchase. $50 will be charged and we can dispatch any in-stock jacket sizing purpose.

No, our jackets do not run small; they are true to size. Please refer to our sizing chart page for accurate jacket measurements.

Use the size guide shown on each product page to choose the appropriate fit. Contact us if you need help confirming measurements or availability for a specific style.

Need measurements for a specific jacket?

Send us the product name and your body measurements before you order.

Ask about sizing

Jacket & Vest Size Guide