Additional 1/8 oval pad gives extra padded protection to the joint, reinforced patella stabiliser around kneecap prevents displacement, open patella relieves pressure on patella.Helpful for postoperative knee problems, strains, arthritis and for protection against abrasions.Stretch fabric inside ensures comfort during wear and makes it easy to slip on or off.Size:Measure around mid-section of the knee, while in a standing position. 13 - 1414⅛ - 1515⅛ - 1717⅛ - 20 (33-35.6cm)(35.9-38.1cm)(38.4-43.2cm)(43.5-50.8cm) Small. Medium. Large