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Outdoor Research Helium Bivy

Colour: Slate
Classic Blue

The Helium Bivy is the lightest and best selling bivy bag from Outdoor Research, as it is incredibly quick to set up and break down. 

The ideal shelter for those minimalist fast packers, hikers, bike packers or anyone in between - the Helium Bivy allows the user to get a good nights sleep without trading weight or performance for speed and agility. Around 14% lighter than its predecessor, the Helium Bivy has everything you'll need to be comfortable. A refined space saving foot print reduces the weight, while the Pertex Diamond Fuse technology ensures the bag is not only waterproof, but also lightweight and durable. The Clamshell opening makes it super easy to get in and out of, and reduces the wear and tear on the seams. 


  • Single pole system, with two stake loops and one guy loop
  • Clamshell opening
  • Reflective trims
  • High volume toe end
  • Two internal fly fasteners
  • Incorporated bug mesh
  • Waterproof, breathable and ultralight fabric
  • Taped seams


  • Season : 3
  • Packed Weight : 448 g
  • Dimensions: Length 213cm | Width (shoulder): 66cm
  • Packed Size : 10 x 38 cm 
  • Materials: Ascent Shell x Pertex Shield Air Diamond Fuse 30D Nylon Ripstop upper, 40D Nylon laminated floor, Polyester mesh

Related Collections

  • For our complete range of Bivy Bags, check out our Bivy Bag Collection
  • For our full range of Outdoor Research products, check out our Outdoor Research Brand Page

Personal Shopping - By Appointment

Would you like to try on some climbing shoes, running shoes or mountain boots for size before you make your purchase? If so, then why not book an appointment with us today! We can offer you a bespoke one-on-one shopping experience with one of our experienced staff members.