Light and compressible down makes this 700-fill puffy the one to pull on when stopping, waiting or just standing in backcountry cold. Worn at a trailhead, rest break or high point, the heater warms core temps rapidly due to its efficient loft yet takes minimal cubic space in a ski pack. An adjustable hem, low-pro Velcro® cuffs and four pockets add function, while it all crams into an included reflective-logo stuff sack that is easy to find by headlamp.