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Ships within 48 hours · Estimated delivery Aug 31 - Sep 5
all-season performance
making it an ideal choice for climbers who prioritize weight reduction without compromising on safety
Lightweight 125 g/m² Cool-Lite merino jersey for warm to hot conditions
Soft next to skin and highly packable
Helium UL Bivy Bag grivel all-season performanceDescription The Outdoor Research Helium UL Bivy provides ultralight, waterproof protection for backpackers, climbers, and fast packers who demand minimal weight without sacrificing performance. Designed for 2026 with updates for durability and functionality, it delivers a reliable shelter thats easy to set up and highly breathable. Constructed from bluesign approved Pertex Shield NetPlus fabric using 100% recycled nylon, the bivy features a fully seam
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