Boot Height: Approx. 10'' Tall. Construction: Goodyear Welt. X-Stream waterproof breathable technology - keeps feet dry and comfortable. Insulation: 1000 Gram 3M Thinsulate Ultra Insulation. Lining: Combat Superknit with ScentMask. Cushioning PU footbeds and rubber midsoles. Outsole: Vibram Little Horn with Reinforced Tip Stitch.