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Outdoor Research
Helium Bivy

4.13 out of 5 stars
16 Reviews
Current price: $149.21 Original price: $198.95
25% off



Ultra-light weatherproof shelter.

Tipping the scales at a feathery 18 ounces, the Outdoor Research Helium Bivy is ideal for moving fast through alpine terrain and wilderness expanses without excess weight slowing you down. However, don't let its minimalist design fool you into thinking it's lacking weatherproof performance or functional features. The Helium Bivy offers total waterproofing and maximum breathability with its Pertex Shield Diamond Fuse 2.5-layer membrane, TPU floor lamination, and fully taped construction. Ultimately, this means you'll stay pleasantly dry when you're camping out in widely variable conditions, all without soaking in a sauna of built-up perspiration during humid summer months.

The Helium features a clamshell design that promotes a restful night's sleep with a Delrin Single-Pole system acting as a stabilizing structure for the bivy itself. The hood unzips during pleasant weather for extra ventilation and impressive stargazing potential. No-See-Um mesh lining keeps biting insects from eating you alive when you're sleeping with the hood unzipped. Other key features include dedicated straps for attaching your sleeping pad, an internal mesh pocket, and stake-down points for securing this bivy in nasty weather.


  • Clamshell design with Delrin Single-Pole System
  • Pertex Shield Diamond Fuse membrane (2.5-layer)
  • TPU laminated floor with anti-fungal coating
  • Ventilated hood unzips with No-Se-Um mesh
  • Fully seam taped
  • Sleeping pad straps
  • Five stake loops
  • One guy line loop
  • Internal mesh pocket
  • Item #ODR00G2
[membrane/laminate] Pertex Shield Diamond Fuse (2.5-layer), [upper] 30D nylon ripstop, [floor] 40D nylon with TPU lamination, [hood lining] no-see-em mesh
Pole Attachment
fully sealed
Interior Height
Floor Dimensions
82 x 26-19in
Trail Weight
[with pole] 15.8oz, [without pole] 14.5oz
ultralight backpacking, alpine & expedition
Manufacturer Warranty