Size Guide

New Size Chart | BestJacketMaker

Men’s Updated Size Chart

Check your measurements below to find the perfect fit — toggle between CM and IN.

Jacket Size	US/UK/AU Size	EU Size	Chest (cm)	Sleeve (cm)	Shoulder (cm)	Natural Waist (cm)	Hips (cm)
XS	34	44	86-89	63.5	41-43	76-79	84-87
S	36-38	46-48	91-97	64.5	44-46	81-86	89-94
M	40	50	99-104	66	47-49	89-94	97-102
L	42-44	52-54	106-112	67	50-52	97-102	104-109
XL	46	56	114-119	68.5	53-55	104-109	112-117
2XL	48-50	58-60	122-127	70	56-58	112-117	119-124
3XL	52	62	129-135	71	59-61	119-124	127-132
4XL	54-56	64-66	137-142	72	62-64	127-132	135-140

Jacket Size	US/UK/AU Size	EU Size	Chest (in)	Sleeve (in)	Shoulder (in)	Natural Waist (in)	Hips (in)
XS	34	44	34-35	25	16-17	30-31	33-34
S	36-38	46-48	36-38	25.5	17-18	32-34	35-37
M	40	50	39-41	26	18-19	35-37	38-40
L	42-44	52-54	42-44	26.5	19-20	38-40	41-43
XL	46	56	45-47	27	20-21	41-43	44-46
2XL	48-50	58-60	48-50	27.5	22-23	44-46	47-49
3XL	52	62	51-53	28	23-24	47-49	50-52
4XL	54-56	64-66	54-56	28.5	24-25	50-52	53-55

Shoulder
Measure from the tip of one shoulder, across your back to the tip of your other shoulder.

Chest
Measure the circumference around the fullest area of chest

Natural Waist
Measure the circumference around the narrowest area of waist

Lower Waist
Measure the circumference around the fullest area of waist

HipsMeasure around the fullest part of your body, above the top of your legs.

Sleeves Outseam
Measure from your shoulder seam, with your arm slightly bent, to the tip of your wrist.

Pants Inseam
Measure from your crotch point to your ankle bone.

For New Customers

If this is your first order with us, simply use the updated size chart above.

Measure your chest, waist, and sleeve length
Match your measurements directly to the chart.
Order with confidence, the chart reflects real fits based on customer feedback and testing.

For Returning Customers

If you’ve purchased from us before, here’s how your old size translates to the new chart

Returning Customers – Size Conversion Guide

Your Old Size	Your New Size	Notes
XS	XS	No change
S	S	Slightly looser than before
M	S / M	Small = snug fit, Medium = relaxed fit
L	M	Now best fits as Medium
XL	L	Now best fits as Large
2XL	L / XL	Closer to XL, Large may work for snug fit
3XL	XL	Shifted down two sizes
4XL	2XL	Shifted down two sizes

If you have any questions about sizing, feel free to reach out to us at contact@bestjacketmaker.com or use the chat widget below for a quick response. Our team will be happy to assist you.