Heel Height: Approx. 8'' Tall. Durable, polishable full-grain leather upper with rugged and lightweight 1000 Denier nylon. 400 grams of Thinsulate Insulation for lightweight warmth in cold environments. Speed lace fastening system for secure fit. Lace garage. 100% waterproof and breathable GORE-TEX lining. Removable cushioning polyurethane footbed. Polyurethane midsole provides superior cushioning and added durability. New Danner TFX-8 platform is the lightest weight and most versatile TFX construction featuring a cross stitch design which provides added durability and stability in the lateral toe and medial heal pivot zones.