Danner Men's Vicious 8" 400G NMT Work Boot 100% Leather Imported Vibram sole Shaft measures approximately 8" from arch Durable, waterproof leather upper 100% waterproof and breathable GORE-TEX lining Superior indoor and outdoor traction with oil and slip resistance from the Vibram Vicious outsole featuring a low-profile 90-degree heel 400G of Thinsulate Ultra insulation Lightweight and athletic performance of Danner's Trailguard platform