Sizing: RB2

Size Fighter's Weight Hand Circumference
S Up to 135 lb (60 kg) max 8" (20 cm)
M 135-154 lb (60-71 kg) max 8.75" (22 cm)
L 160-190 lb (75-85 kg) max 9.5" (24 cm)
XL Over 200 lb (91 kg) max 10.5" (26.5 cm)