K-SWISS Men's Tubes Run 100 Suede Running Shoe 100% Suede and textile Rubber sole Running shoe built for the neutral to under-pronator who requires lightweight cushioning Stay-Tied Laces act as a "catch" to keep the laces tied through your entire run Cushioning provided by regionally specific Tubes technology Enhanced flexibility with anatomically correct flex grooves K-EVA special formula EVA midsole provides maximized cushioning and enhanced durability