Train In This
I wore these insanely comfortable duds on every training mission. The Black Diamond Dawn Patrol Ski Touring Pants [$199; backcountry.com] deal with heavy aerobic output in any temp without feeling clammy or too light. Roomy thigh pockets hold snacks, skins, and sunscreen, and the cut is perfect: neither euro-slim nor freeride baggy. The Black Diamond CoEfficient Hoody [$159; backcountry.com] is trim and cozy, with a hood that fits under my helmet on cold days and long sleeves that fully sheathe my simian arms.