Heyburn 3L Bib

The Heyburn Bib is a high-performance, lightweight 3-layer shell engineered for demanding backcountry conditions, featuring a 30k/30k waterproof and breathable membrane and PFAS-free DWR to keep you dry no matter how crazy the snow globe’s going. Designed with a streamlined, function-first approach, it’s made with a soft yet durable 100% recycled nylon paired with a NASA-developed Trizar® ™ backer that reflects body heat when you're cold and release excess heat when you're working hard—keeping your temp just right all day long. A stretch panel at the back improves comfort and fit, while light mechanical stretch throughout ensures you can move freely on the skintrack or descent. Thoughtful features include side leg zips for easy venting and drop-seat access (and for peeing in the wild), a thigh pocket with internal beacon attachment, and a chest zip pocket with low-profile key clip for secure, bounce-free storage. We heard customer feedback and adjusted the sizing down for this season, resulting in an ideal ergonomic fit.

• Soft elastic shoulder straps with quick-release adjustment
• Waterproof zippered chest pocket with low-profile key clip and internal headphone cord port
• Stretch back panel for comfort and fit
• 2-way waterproof zippered side vents (both sides)
• Drop-seat design for easy bathroom access
• Waterproof zippered thigh pocket with internal beacon attachment
• Waterproof zippered inner-thigh vents
• High-durability scuff cuffs
• Internal snow gaiters
• Zippered cuffs
• Inseam: 31 ½" (size S)
• Weight: 19.7 oz

• Face fabric: 100% GRS certified recycled nylon
• Interior Lining: NASA-developed premium Trizar® Print lining for thermal regulation
• PFAS-Free, C0 DWR treatment
• 30k/30k performance
• To care for your DWR-treated bibs, wash it with a special technical detergent (like Nikwax) in a front-loading washing machine on a warm setting with an extra rinse cycle. Avoid using standard laundry detergents, fabric softeners, or bleach, as these can interfere with the DWR coating.
• Tumble dry the bibs on low with warm heat for at least 30 minutes to reactivate waterproofing.