Upper uses light, supportive foam between two soft layers of breathable mesh. Durable leather overlays for stability that locks in your midfoot. Stretch bungee laces and velcro® closure for easy on/off. Antimicrobial treatment applied to minimize the risk of odor causing bacteria and infectious fungus. Full-length cushioned eva midsole delivers the ultimate lightweight and responsive ride. Strategically placed rubber traction covers high impact zones for greater durability with less weight . Non-marking rubber outsole delivers greater traction with less weight.