Danner Men's Radical 452 GTX Outdoor Boot 100% Leather and Fabric Imported Synthetic sole Shaft measures approximately 5" from arch Heel measures approximately 1.5" Platform measures approximately 1.0" Durable, nubuck leather upper with lightweight 1000 denier nylon Abrasion-resistant toe cap GORE-TEX waterproof, breathable lining Cushioning EVA footbed Thermoplastic PU shank TERRA FORCE platform offers lightweight performance and stability