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The Trew Gear Trillium Bibs are made with a burly nylon oxford construction and a boost of insulation for extra warmth throughout our cold, damp PNW winters. Engineered just like the Astoria, but with 60 grams of synthetic insulation, these all-mountain, all-weather bibs thrive in lower temps. Their relaxed fit makes for easy layering, and a 20K/20K water and windproof membrane protects from snow and wet weather.
PNW 2-Layer Fabric (200D x 320D Heavy Duty 100% Nylon Oxford Weave) – Trew builds the PNW Originals collection with a heavy-duty fabric laminated to a durable polyurethane waterproof/breathable membrane. The woven fabric is constructed in an Oxford weave - similar to a canvas work pant - with heavy-gauge 200 denier by 320 denier nylon yarns. New this season, this waterproof and breathable fabric is now rated at 20,000mm waterproof and 20,000gr/m² breathable. The final package is a 2-layer fabric engineered to keep you dry, comfortable, and well-protected against wear and tear.
PFAS-Free C0 DWR Finish
20K Waterproofing / 20K Breathability
60g High-Loft Synthetic Insulation
Zoned Insulation for Warmth and Flexibility – No insulation below the boot or above the waist.
Soft-Touch Nylon Liner – 100% Nylon 20D Plain Weave
Relaxed Fit – Allow for layering underneath + uninhibited movement while out in the mountains.
Laminated Chest Kangaroo Pockets with Ykk Vislon Aquaguard® Zipper
Zip Thigh Cargo Pocket
Top & Bottom-Opening Side Zips
Inner Leg Zip Vents
Adjustable Jacquard Elastic Straps with Silicon Gripper
Water-Resistant Zips on All Exposed Openings
Tough Scuff Abrasion-Resistant Fabric at Cuffs
Fully Seam Taped with 2L Tape
Internal Boot Gaiters
RECCO® Reflector
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° |