Size Guide: Alpinestars Protectors

Back & Chest Protectors

Size	Chest	Waist
XS	32 7/8 - 35	27 1/8 - 29 1/2
S	35 - 37 1/4	29 1/2 - 31 7/8
M	37 1/4 - 39 3/8	31 7/8 - 34 1/4
L	39 3/8 - 41 1/2	34 1/4 - 36 1/4
XL	41 1/2 - 43 3/4	36 1/4 - 38 1/4
2XL	43 3/4 - 45 7/8	38 1/4 - 40 1/8
3XL	45 7/8 - 48	40 1/8 - 42 1/8

Elbow Protectors

Size	Upper Arm Circumference (CM)	Lower Arm Circumference (CM)
XS	20 - 23	20 - 22
S	23 - 26	22 - 25
M	26 - 29	25 - 28
L	29 - 32	28 - 31
XL	32 - 35	31 - 34
2XL	35 - 38	34 - 37

Knee Protectors

Size	Upper Leg Circumference (CM)	Lower Leg Circumference (CM)
XS	36 - 39	29 - 32
S	39 - 42	32 - 35
M	42 - 45	35 - 38
L	45 - 48	38 - 41
XL	48 - 50	41 - 43
2XL	50 - 52	43 - 45