When you're carving your way down the mountain, you need trousers that not only keep you warm and dry, but also have enough stretch to let you move freely. The Chakal Trousers fit the bill perfectly. PrimaLoft Black synthetic insulation and waterproof and breathable DryVent technology. North Face's Chimney Venting system will also help to keep you ventilated as you push yourself harder. And stretch fabric ensures full freedom of movement.