MONTANE Volt Outdoor Jacket - SS17 POLARTEC Thermal Pro Honeycomb - Creates air pockets, trapping, retaining body heat and endowing the Volt Shirt with outstanding warmth without weight. Flat-locked Sewn Seams - For added durability and reduce chaffing. Concealed Zipped Chest Security Pocket - For storing valuable items. Lycra Bound Hem and Cuffs - For a flexible and warm fit. YKK Front Zip - This half length, reversed and baffled two way zip is designed to promote venting and acess to internal pockets whilst on the move.