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With a smart Grow Feature allowing the legs to be extended by 1.5" when needed, the Boulder Gear Cooper Bibs merge longevity with durable waterproof protection. With all the beloved coverage you get from bibs, the Cooper Bibs also feature a zippered chest cargo pocket, YKK® zippers, and inner snow cuffs to keep you completely sheltered from snow, whether you're riding pow or recovering from a tumble.
BG ULTRACORE™ – 10,000 mm Waterproofing / 10,000 g Breathability
100% Polyester – 80g
Adjustable Shoulder Straps
Inseam Length – 25.5" (sz M)
Grow Feature – Allows legs to extend by 1.5"
Zippered Chest Cargo Pocket
Critical Seam Sealed
YKK® Zippers – A name that is synonymous with quality and durability, which makes them perfect, easy to use with a gloved hand or in wind-driven icy conditions.
Waistband Adjustment
Inside Snow Cuff
| 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 |