The North Face says about the Purist Bib Women's
Designed specifically for deep-powder skiing and snowboarding, the Purist Bib is made from FutureLight™, our new game-changing material. The nano-spun membrane and unique laminating process take lightweight waterproof breathability to a new level. And together with the hyper-articulated fit these Bib Trousers offers outstanding freedom of movement. They have harness friendly pockets and zip fly, outer leg vents and elasticated gripper gaiters with hooks to keep snow out of your boots, even when hiking up.