*Drag reducing jet vented design, High quality and stylish looking, Durable & lightweight, Open heel design, Soft rubber foot pocket for comfortable fit with either socks or barefoot, Easy adjust strap with
release buttons
*Men's Size (Shoes): S/M(4-8.5), ML/XL(9-13)
*Women's Size (Shoes): S/M(5-9.5), ML/XL(10-14)