Size charts define body measurements, not measurements of the garment.

Measurements are in inches.

Men's Adidas

Size	Chest	Waist	Hip	Inseam
S	35 - 37	29 - 31	-	30.75
M	38 - 40	32 - 34	-	31
L	41 - 43	34 - 36	-	32
XL	44 -46	36 -38	-	34
XXL	47 - 49	38 - 40	-	-