The PT-03 WINTER is built on a uniquely formulated midsole which delivers excellent durability and shock absorption in extreme low temperatures. Featuring a tough waterproof upper which protects your feet and shoe from the environment. Together with an abrasion resistant cold-grip outsole and a bio-flexible underfoot bruise plate, this shoe is designed to assist you run safely and comfortably in the coldest and wettest of environments. The PT-03 WINTER running shoe has an optimal temperature range of -20 to +10°C (-4 to +50°F) |