Measurement Guide

Circumference Thigh (Above knee 15cm) Knee Center Calf (Below knee 15cm)
XS 13.0''-15.5'' 12"-13" 10"-12"
S 15.5"-18.5" 13"-14" 12"-14"
M 18.5"-21" 14"-15" 14"-16"
L 21.0"-23.5" 15"-17" 16"-18"
XL 23.5"-26.5" 17"-19" 18"-20"
Measurement taken at the center of the knee (directly over patella)
TRIZONE KNEE SUPPORT SIZE CHART