FEATURES OF THE SOREL MEN'S CARIBOU STACK WATERPROOF BOOT: Buff color has a waterproof nubuck leather upper Black option has a waterproof full grain leather upper Seam-sealed waterproof construction Removable 9 mm washable recycled felt inner boot with Sherpa pile snow cuff for the insulation 2.5 mm bonded felt frost plug midsole Handcrafted waterproof vulcanized rubber shell with SOREL aero-trac non-loading outsole. 100% Authentic shoes, comes with original boxes and WE SHIP THE ITEM SAME BUSINESS DAY. The listing images describes best for understanding. let us know if you have any question.