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To measure upper leg, measure the circumference 10cm or 4 in above the knee cap. Measure your calf at the widest part.

Alpinestars MTB Knee Guard Sizing

Size	Upper Leg (cm)	Calf (cm)
2XS	33-36	26-29
XS	36-39	29-32
SM	39-42	32-35
MD	42-45	35-38
LG	45-48	39-41
XL	48-50	41-43
2XL	50-52	43-45

Sizing information is provided by the manufacturer and does not guarantee a perfect fit.

How to Measure

CF Calf
While standing upright, feet flat on the floor, measure the circumference of your calf at the widest point, while keeping your ankle bent at a 90° angle.

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