Shipping Info:


Our Helium Bivy used to be the best-selling, award-winning, lightest shelter offered by Outdoor Research - until we outshone it with this: The newly renovated Helium Bivy. 14% lighter than its previous version, the Helium Bivy is ideal for multiday minimalists who are looking to trade weight for speed, agility, and performance. Thru-hikers and bikepackers love the new Helium for its refined footprint and reduced weight, and trust it for its feathery waterproof and breathable Pertex® Shield+ fabric that doesn’t compromise on durability. A no-nonsense clamshell opening is sure to handle seasons of adventuring to come.


  • Pertex® Shield 2.5L, 100% nylon, 30D ripstop upper Lower - 100% nylon, 40D with TPU lamination floor
  • Delrin® single-pole system
  • Reflective logo and trims
  • Two stake loops
  • One guy line loop
  • High volume toe end
  • Clamshell opening
  • Two internal fly fasteners
  • Award-winning for its ultralight prowess, made even lighter
  • Waterproof, breathable, durable, no-see-um mesh
  • Ultra lightweight
  • Fully seam-taped


  • Weight With Pole: 16.2 oz.
  • Weight Without Pole: 14.3 oz.
  • Length: 83 in.
  • Head Width: 26 in.
  • Foot Width: 19.5 in.
  • Head Height: 17 in.
  • Height Foot: 15 in.