evo.com | Stio Shell Pants > 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(TM) 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. Oversized Thigh Pockets with Additional Slip-In Pocket Drop-Seat Functionality for Convenient Access PeakProof Hydrophilic Membrane 20K Waterproofing / 10K Breathability 150D PeakProof(TM) 3L Canvas 100% Recycled Polyester Stio's new PeakProof(TM) rating ensures a Teton-tested level of waterproof technology and breathable comfort for elevated action in mountain environments. 20 Denier Tricot Backer 194/gm^2 | Women's Stio Environ Bibs 2025 - X-Small Black | Polyester