Boot Height: Approx. 8'' Tall. The Silencer HD is designed for all-day hunting in comfort. The Hyper-dri barrier offers 100% waterproof protection and moisture-transfer, and the strong, durable upper provides tough abrasion-resistance in pursuit of game. 1000 Denier nylon upper for durability and leather/nylon upper. Thinsulate Ultra Insulation adds warmth for cooler conditions.