Whilst the Patrol Boot doesn’t have the Gore-Tex lining, what this means in practice is that you have a more versatile pair of Lowa boots that will dry out quicker if your feet have been fully submersed & will provide maximum breathability & heat management in warmer climates. Boot Features: Upper: Sturdy water repellent 2.6mm full grain leather. Lining: Cambrelle, giving a tough wear resistant lining. Midsole/outsole; Vibram Tsavo sole for excellent grip on all surfaces. Midsole made from polyurethane for cushioning & comfortable walking; crampon compatible (strap on) Technology. Lowa boots come in half sizes to ensure a precise fit.