Design: 100% waterproof protection 3mm neoprene bootie for comfort and performance Muckskin flexible neoprene with abrasion resistant rubber coating combined with hand laid rubber for durability In-Shoe Comfort: Cool Weather Lining: soft, insulation, light-weight, performance materials for warmth and comfort Breathable mesh sandwich-fabric lining improves air circulation Molded PU insert with memory foam for superior underfoot comfort bioDEWIX™Dry footbed insert topcover with NZYM™ for odor control and moisture management Durability & Traction: Rubber outsole with innovative lug design provides traction while quickly releasing mud and other debris Additional Details: Comfort range: sub-freezing to 65°F 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.