Outdoor Research Helium UL Bivy Colour:Spice The Alpine Onset Merino 150

The Alpine Onset Merino 150 Beanie combines the natural anti-odor properties of merino wool and recycled polyester's added durability and moisture management to create an ideal choice for winter layering without overheating

Every detail of the product has been rigorously tried

Shorter shoulder straps and shorter hipbelt make the Thunder 50 Womens ideally suited for the female physique

or neck warmer - you name it

Wear it as a standalone jacket or under a hardshell

Outdoor Research Helium UL Bivy Colour:Spice The Alpine Onset Merino 150The Helium UL Bivy is built for ultralight backpackers, climbers, and fast packers who need waterproof protection and breathability in a minimalist shelter. Made with bluesign approved Pertex Shield NetPlus fabric from 100% recycled nylon, the Helium UL Bivy is newly updated for 2026 to deliver durable, lightweight performance with a fully seam taped design and waterproof PU coated floor for reliable weather protection. Dual passive ventilation flaps