The Nike Sport Loop is soft, breathable, lightweight, and designed for fitness – featuring selected colors that match the new Nike running shoes. It is made from a nylon fabric with reflective yarn that shines when illuminated. With its Velcro closure, you can easily and quickly adjust it, and the dense mesh on the inside serves as a soft cushion while allowing moisture to escape. The closure strips on the back are securely integrated, providing even more stable support.