Design: 100% waterproof protection Multi-season, lightweight construction 2mm neoprene bootie for comfort and performance in any weather Draw-string cord allows for a snug fit that keeps the feet warm and the cold out In-Shoe Comfort: Breathable mesh lining Warm Lining: soft, insulation, light-weight, performance materials for warmth and comfort Durability & Traction: Lugged rubber cup outsole for durable, all-terrain traction Additional Details: Comfort Range: Subfreezing to 65°F / 18°C Warranty: All Rocky® products have a one-year limited warranty in normal use, against any manufacturing flaw(s), defective materials or workmanship. This warranty also covers GORE-TEX® bootie liners against leakage for one year. Products with all other waterproof construction are guaranteed waterproof for six months from the date of purchase.