The Under Armour Men's Expanse Mid Waterproof Boots deliver lightweight trail performance with waterproof protection, abrasion resistance, and dependable underfoot grip. The composite ripstop upper and auxetic tongue help balance durability and comfort, while the waterproof membrane helps manage wet conditions. A molded Contoura footbed, ESS rock plate, Charged Cushioning midsole, and high-traction rubber outsole round out a mid-height boot designed for rugged outdoor movement.