Design: Reliably performs in nearly every environment 100% waterproof protection 5MM neoprene bootie for comfort and performance Extended rubber coverage for enhanced protection In-Shoe Comfort: Cool weather lining: soft, insulation, lightweight, performance materials for warmth and comfort bioDEWIX(TM) Dry footbed insert topcover with NZYM(TM) for odor control and moisture management Comfort insole keeps your feet feeling good all day long Lightweight EVA midsole for long lasting comfort and support Durability & Traction: Rugged rubber outsole for enhanced traction Additional Details: Comfort range: -40deg to 40degF Warranty: All Rocky(R) 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(R) bootie liners against leakage for one year. Products with all other waterproof construction are guaranteed waterproof for six months from the date of purchase.