Designed for active use, the LaCrosse Men's Cold Snap II 9" Olive Night 1200G Boots pairs full-grain leather and 900-denier nylon upper with breathable Dry-Core waterproof protection, 1200G Thinsulate Ultra insulation for hunters and outdoor users who need reliable mobility across wet, uneven, and changing terrain. 1200G Thinsulate Ultra insulation helps retain warmth for deep-winter and very cold conditions without unnecessary bulk. Underfoot, the Permafrost outsole helps maintain traction, and the full-grain leather and 900-denier nylon upper construction keeps the boot suited to extended movement in deep-winter and very cold conditions.