BMX Race Jersey Sizing Guide by Stay Strong

Size	1/2 Chest circumf.	Body length	Sleeve width	Shoulder to sleeve	Sleeve hole width
5 - 6	25 cm	50 cm	15 cm	45 cm	7 cm
7 - 8	37.5 cm	52 cm	15.5 cm	47 cm	7 cm
9 - 10	40 cm	56 cm	16 cm	50 cm	8 cm
11 - 12	41 cm	57.5 cm	16 cm	51 cm	8 cm
XXS	42.5 cm	59 cm	16.5 cm	52 cm	8.5 cm
XS	45 cm	62 cm	17 cm	54 cm	8.5 cm
S	47.5 cm	66 cm	17 cm	58 cm	9 cm
M	50 cm	69 cm	18 cm	61 cm	9 cm
L	52.5 cm	72 cm	19 cm	64 cm	9.5 cm
XL	55 cm	75 cm	20 cm	67 cm	10 cm
2XL	57.5 cm	78 cm	21 cm	70 cm	10.5 cm