Size Elbow S/M Elbow L/XL Knee S/M Knee L/XL
Top Opening 10.0" - 12.0" 11.0" - 15.0" 12.0" - 17.0" 13.75" - 18.75"
Bottom Opening 9.0" - 10.25" 10.0" - 12.25" 10.5" - 13.0" 12.5" - 14.0"
Length 9.0" 10.0" 11.25" 12.0"