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. PeakProof Hydrophilic Membrane 20,000mm Waterproofness, 10,000 g/m2/24hrs Breathability 150 Denier PeakProof(TM) 3L Plain Weave (100% Recycled Polyester) In our outdoor world, not all shell fabrics rate the same, which is why we decided to set a Stio(R) standard for mountain-rated protection you can trust when rough weather descends. 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 Oversized Thigh Pockets with Additional Slip-In Pocket Drop-Seat Functionality for Convenient Access | Stio Environ Bibs Men's 2026 - Small Black | Polyester