Relief for Patella alignment pain in a low profile design, Adjustable Internal Tubular Support helps relieve Patella alignment associated pain, Low Profile Interlocking Overlap Strap Design offers wide range of fit, Premium Z-Grip Adjustable Compression Strap Closures, Lycra Binding for comfort and long lasting wear, N-Tex Neoprene for Brushed Lining, Small /Med Knee Inches 12.25–14, Knee CM 21.1–35.6