The Stio Environ Bibs are built for the pow. Fully kitted to keep you dry and regulated when deep snow calls, they feature 3L PeakProof waterproof shell fabric that’s durable, breathable and keeps you send-ready. Equipped with articulated knees, kick patches, and waterproof zippers, these layerable shell bibs were made to move everywhere from the skin track to the in-bounds couloir.