Salomon Wings Sky GTX 100% Synthetic lace-up closure ACS- Agile Chassis System- The perfect balance of cushioning and stability Water resistant textile, waterproof bootie construction Anatomical EVA footbed Ortholite sockliner - creates a cooler, drier, healthier, better cushioned environment under the foot Contagrip outsole - provides unparalleled grip and durability by a smart mix of 20 different compounds, lug geometry and density