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Adult Size Guide

Our adult T-shirts are unisex and measured laid flat. Measurements are in centimetres, with inches underneath.

How to choose: lay a T-shirt that fits you well flat and measure across the chest, armpit to armpit, then pick the closest size. Women may prefer to size down for a closer fit.

Classic T-shirt (most of our designs)

S M L XL 2XL 3XL 4XL 5XL
Chest width, laid flat 46
18 in
51
20 in
56
22 in
61
24 in
66
26 in
71
28 in
76
30 in
81
32 in
Length 71
28 in
74
29 in
76
30 in
79
31 in
81
32 in
84
33 in
86
34 in
89
35 in

Not every design comes in every size; the sizes you can pick on the product are the ones available. Measurements may vary by up to 4 cm (1.5 in).

Heavyweight garment-dyed T-shirt (for example our Scuba Diver T-shirt; the product description says if it's this style)

S M L XL 2XL 3XL 4XL
Chest width, laid flat 46
18.25 in
51
20.25 in
56
22 in
61
24 in
66
26 in
70
27.75 in
76
29.75 in
Length 68
26.6 in
71
28 in
75
29.4 in
78
30.75 in
80
31.6 in
83
32.5 in
85
33.5 in

Measurements may vary by up to 4 cm (1.5 in).