Get all the comfort of a running shoe in this premium winter hiker. X ULTRA WINTER CS WP 2 is warm, waterproof, and features the unmatched comfort and durability of full grain leather. The X Ultra bottom unit combines a stable yet agile Advanced Chassis with the confident traction of Contagrip. Thinsulate™ insulation provides enough insulation for snowy, cold conditions. A full grain leather upper helps keep the elements out while providing great fit and comfort.