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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.
150 Denier PeakProof™ 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® standard for mountain-rated protection you can trust when rough weather descends. Stio's new PeakProof™ rating ensures a Teton-tested level of waterproof technology and breathable comfort for elevated action in mountain environments.
Kickpatches – CORDURA® Dobby, 420 Denier Dobby, 100% Nylon, 310 g/m2 with a PFAS-Free DWR Finish
80/20 PFAS-Free DWR Finish
PeakProof Hydrophilic Membrane – 20,000mm Waterproofness, 10,000 g/m2/24hrs Breathability
20 Denier Tricot Backer 194/gm²
Regular Fit – A casually shaped design that’s not too tight and not too baggy.
Inseam – 31.5"
Adjustable Suspenders
High Waist, Mini-Bib Design
Oversized Thigh Pockets with Additional Slip-In Pocket
Zippered Handwarmer Pockets
YKK® Water-Resistant Aquaguard® Pocket Zippers
Outseam Venting Provides Climate Control
Drop-Seat Functionality for Convenient Access
Fully Seam Sealed – For completely waterproof and windproof protection.
Two-Way YKK® Water-Resistant Aquaguard® Vislon® at Outseam Vents
Articulated Knees & Action Gusset
Internal Boot Gaiters with Gripper Elastic
Webbing Loop at Interior Waistband to Hang Dry
Stretch Woven Bib Panel for Comfort and Breathability
Zippered Front Fly
Breathability Rating (g) | Breathability Level | Activity Level |
0 - 10000 | Low to moderate breathability | Resort skiing & snowboarding / walking / low intensity activity |
11000 - 15000 | Moderate breathability | Resort skiing & snowboarding / hiking / moderate intensity activity |
16000 - 20000 | High breathability | Backcountry skiing & snowboarding / backpacking / moderate to high intensity activity |
21000+ | Very high breathability | Backcountry skiing & snowboarding / biking / high intensity activity |
Warmth | Description | Ideal Conditions |
Shell | Outer shell with no insulation. Pair with base layers and mid layers to fine tune the level of warmth required. | Variable |
Warm | Light insulation. Use additional base or mid layers to add warmth when temperatures drop. | 20° - 35° |
Warmer | Moderate insulation. Suitable for cold conditions. | 10° - 25° |
Warmest | Heavy insulation. Designed to keep you comfortable and protected on the coldest days. | Below 15° |