In modern layering systems, the 100 weight jacket is the perfect midlayer. It can be warm under hardshells in a classic layering system or under a soft shell in really cold conditions. Jackets are also easy to get on & off & allow for venting through the front zip on those long ascents. Mountain Equipment Mens Micro Jacket
Features: POLARTEC Classic 100M is light, warm & quick to dry Flatlocked seams throughout for next-to-skin comfort YKK reversed centre front zipper 2 zippered hand warmer pockets Adjustable drawcord hem