"The Original Muck Boot Company® Men's Arctic Pro Rubber Field Boots deliver superior comfort and performance. A fleece lining and thermal foam underlay ensure that your feet and legs stay warm, while the stretch-fit upper binding seals in the heat. The instep, heel and Achilles areas have extra cushioning for added protection. Enjoy excellent traction on rugged terrain with the Bob-Tracker molded outsole of the Muck Boot Arctic Pro Boots. FEATURES: Stretch-fit topline upper binding conforms to calf for heat-retention and protection 8mm CR flex-foam with 4-way stretch nylon increases upper flexibility Lightweight, waterproof upper construction protects against the elements Fleece lining keeps feet and legs warm in cold weather 2mm thermal foam underlay boosts warmth Instep, heel and Achilles reinforced with maximum cushioning for comfort and stability EVA molded midsole and contoured footbed enhance comfort Increased toe protection in a wrap-up bumper Bob-Tracker molded outsole enhances grip on rugged terrain for ultimate traction Comfort range of -60°F to 40°F Height: 16"" Weight: 2 lbs. 11 oz. Style: ACP WARRANTY: All Rocky® products have one-year limited warranty in normal use, against any manufacturing flaw(s), defective materials or workmanship. The 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."