Icy mornings at the crags, evening in a backcountry hut, sub-zero ski days, late fall backpacking, or just kicking around camp – when cold is part of the mission, bring these pants. Premium 850 fill goose down means they’re light, warm, easily packed, and ready to deliver warmth during static phases or in an emergency. The streamlined profile layers under Arcteryx regular fit Gore-Tex pants and bibs, zippers at the lower leg make pulling them on easy, and the articulated patterning is made to move.