Overview The Sport Loop is soft, breathable, and lightweight. It features a hook-and-loop fastener for quick and easy adjustment. The nylon weave has a two-layer construction, with the loops on the skin side providing cushioning and allowing moisture to escape. Specifications Material: 80% Recycled Nylon, 100% Recycled Polyester, 100% Recycled Spandex Color: Starlight Size: 41mm Condition: New I opened it once, but it wasn't what I expected, so I haven't used it. It's in beautiful condition, with no noticeable stains. However, it has been stored at home, so please refrain from purchasing if you are sensitive to such things. Thank you.