Constrictor High WP W is equipped to deliver all the protection needed for the coldest, toughest conditions.Keep your movements fast and light on rough trails with waterproof protection and Primaloft insulation. Abrasion-resistant uppers offer durability and extended protection, and house the water-resistant Primaloft lining. Constrictor High WP M delivers Viking's UGC traction, legendary durability, and all-weather protection to ensure your feet can handle long expeditions and demanding conditions.