Salomon Men's X Ultra LTR GTX Hiking Shoe 100% Nubuck Leather/Full Leather Upper/Polyurethane Coated Leather Imported Rubber sole Taken from our most stable running shoes, the Advanced Chassis delivers stability and support on rugged terrain. A leather upper stands up to sharp rocks and trail abuse, and looks great Mountains almost always give you unexpected weather. Full GORE-TEX bootie ensures comfort in the harshest weather conditions.