Arm Pad Size Chart (measure bicep around widest point):
XS 8.25-10" 21-26 cm
S/M 11-12.5” 28-31 cm
L/XL 12.25-13.5” 31-34 cm
Elbow Pad Size Chart (measure bicep around widest point):
M 11.5-12.75" 28-32 cm
L 12.75-14.5” 32-37 cm
XL 14.5-16” 37-41 cm