Boot Height: Approx. 8'' Tall. Construction: Cement. Insulation: 800 Grams of Thinsulate Ultra Insulation. Insole: Removable Dual Density Polyurethane Footbed. Midsole: Compression Molded EVA with VGS 300 Technology. Outsole: VGS Hiker Unit. Special Features: Waterproof, Breathable Construction. Reinforced Toe and Heel Guard.