Columbia - Titianium Vertical Rise (Alpine Tundra/Blue Lake) - Men's: A lightweight, all-weather hiking boot. Designed for medium load-bearing multiday backpacking trips, yet versatile enough for fast-pack dayhikes. built on performance last. 4 high boot. Waterproof suede and mesh. Incorporates a durably waterproof/breathable GORE-TEX(R) bootie. Gusseted tongue. Metal speed hooks and roller bearings. Full length molded polypropylene lasting board. Molded PU midsole. Vibram(R) rubber compound with lug tread pattern.