The LaCrosse Women's Ridgeback 8" Brown 400G Boots supports fast, confident movement with suede leather and abrasion-resistant nylon upper and breathable Dry-Core waterproof protection, 400G Thinsulate Ultra insulation. 400G Thinsulate Ultra insulation helps retain warmth for cold-weather hunts and outdoor work without unnecessary bulk. Underfoot, the Ridgeback outsole helps maintain traction, and the suede leather and abrasion-resistant nylon upper construction keeps the boot suited to extended movement in cold-weather hunts and outdoor work.