The Sorel Women's Caribou® Winter Boots are often imitated but never equaled. If you want the real deal with timeless styling, then this is it. These boots feature seam sealed waterproof construction with a nubuck leather upper. The bottoms are made of a handcrafted water proof vulcanized rubber shell, and the Sorel AeroTrac non-loading outsole. The Sorel Women's Caribou® Winter Boots are topped off with a wool/acrylic blend snow cuff.