The Arc'teryx Atom AR, with double the torso insulation of the lightly insulated jackets, makes an excellent mid-layer for truly cold weather and stylish outwear. This is a beefy, well-built jacket that features a heavier, more durable shell fabric than most we tested. The fleece-lined hand pockets, single-pull hood adjustment, stretchy wrist-hugging cuffs, and fancy main zipper pull are the type of superior features Arc'teryx is known for. The Atom AR makes an excellent fair weather ski jacket and has a stylish look around town. This jacket's little brother, the Arc'teryx Atom LT Hoody, is a time-tested lightly insulated jacket with breathable fleece panels under the arms.
This is our favorite medium-insulated jacket. If you're looking for something a bit less bulky, consider our Editors' Choice Rab Xenon X Hoodie with its excellent wind and water resistance or the award-winning Patagonia Nano-Air Hoody, a breathable model designed for comfort during high energy activity.