WATERPROOF: KEEN.DRY waterproof, breathable membrane keeps your feet dry in wet terrains; Mesh liner integrates with the waterproof membrane,FIT & DESIGN: Sleek Contoured Fit curves with the natural shape of the foot for a more secure fit; Soft microfiber lining adds a cozy finish,INSULATED: KEEN.WARM 200G insulation helps keep feet warm in temperatures down to -25° F / -32° C but still allows feet to breathe,TRACTION: Grippy rubber helps give you the traction you need on varied trail terrain,CARE TIPS: Gently brush leather with a soft bristle brush or hand towel to remove loose dirt and debris; Tough stains may require a leather cleaner