Columbia Men's Diamond Peak Hiking Boot 100% Leather Waterproof all-weather hiking boot built for the backpacker or outdoor enthusiast who carries heavy loads on multi-day trips over rough terrain Wateproof full-grain leather upper Dri-Lex moisture wicking mesh lining Gussetted tongue helps keep dirt and debris out Nylon shank with full-length composite lasting board protects the foot on rough terrian