Cycling in cold weather can be a true challenge. You need a jacket that keeps the cold out, but also breathes with you to move sweat away from the skin. A high performing GORE-TEX INFINIUM™ fabric with GORE® WINDSTOPPER® product technology on the outside keeps even the coldest wind off you is combined with a POLARTEC® ALPHA® insulation on the inside. Mapping this insulation into the right places, while leaving the high heat areas free to breathe means the jacket can be made much lighter and less bulky than a fully insulated piece. Less to carry up the hills, with just as much protection on the way down.