Sorel Caribou Winter Snow Boot Waterproof Shoe - Cinnamon - Womens - 9.5 Leather/Suede Shaft measures approximately 8.5" from arch Seam-sealed waterproof construction. UPPER: Waterproof full-grain and suede upper. INSULATION: Removable 9mm ThermoPlus InnerBoot. Wool/acrylic blend snow cuff. MIDSOLE: 25 mm bonded felt frost plug. SHELL: Handcrafted waterproof vulcanized rubber shell. OUTSOLE: SOREL AeroTrac non-loading outsole.