Abrasion-Resistant Stretch Nylon and Breathable Mesh Upper - made for comfort, durability and breathability to keep your feet cool, whilst also keeping debris out of your shoe. * Single Hook and Loop Closure - offers a secure and comfortable fit * Non-Marking 3.5mm Vibram TC1 Peformance Rubber Outsole - offers superb grip and traction, it is razor-siped to add to the grip * 2mm EVA Insole - for added cushioning, protection and comfort