Running shoe built for the neutral to under-pronator who requires lightweight cushioning. Go the extra mile and push yourself to the limit with the Tubes Run 100, a lightweight cushioned running shoe by K-Swiss. Breathable mesh upper with synthetic overlays and trims. Stay-Tied Laces act as a catch to keep the laces tied through your entire run. Cushioning provided by regionally specific Tubes technology. K-EVA special formula EVA midsole provides maximized cushioning and enhanced durability. Enhanced flexibility with anatomically correct flex grooves. AÖSTA II rubber compound high-density outsole provides unsurpassed durability form heel-to-toe. Measurements: ; Weight: 13 oz ; Product measurements were taken using size 8.5, width D - Medium. Please note that measurements may vary by size.