NRS Kicker Remix Shoe - Men's Synthetic Upper and insole are constructed with 3 mm Terraprene neoprene with titanium to keep your feet warm from heel to toe Naturally shaped toe box provides a roomy, non-binding fit Stretchy rubber bands improve lateral stability and help hold the shoe to your foot Shoe-top draw cord keeps your foot snug and secure Patterned rubber sole for excellent traction and protection