lightweight warmth to defy the cold. these pants are built to breathe and keep you on the move. featuresregular fit is just right: not too tight or too baggy stretchy, breathable, and lightweight nylon plain weave fabric thermacore stretch insulation [40g] for focused warmth and enhanced breathability [ak] dwr coating elasticized waistband with internal drawstring cinch, stretch binding at cuffs zippered back pocket and zippered hand-warmer pockets bluesign® approved materials use only safe chemicals and reduce impact on both humans and the planet during manufacturing