Timberland Premium 6-Inch Waterproof Boot For Men In Black Size 10.5. The Men's Timberland® Premium 6-Inch Boot is the original. Iconic, fully waterproof and featuring 400 grams of PrimaLoft® insulation, this boot features waterproof Premium Timberland® leather uppers with a cushioned collar. A removable, anti-fatigue footbed and steel shank designed for arch support work together to deliver all-day comfort. By purchasing this product, you are supporting Leather Working Group certified tanneries