The Combat GTX Boot is made with a higher leg than the Mountain & Patrol to give your lower leg & ankle more support & protection. Features: Sturdy water repellent 2.6mm. Full grain leather lining coupled with a Gore-Tex backing. Midsole made from polyurethane for cushioning & comfortable walking; crampon compatable (strap on) Technology. Lowa climate control system & climate control insoles.Lowas come in half sizes to ensure a precise fit.