Outdoors & Fitness · Head-to-head

Rab Ridge Raider Bivi vs Rab Storm Bivi

Which should you buy? Our verdict on both, pulled from our full The Best Bivy Sacks: 4 Compared (and One to Skip) comparison.

The Ridge Raider has the stated hoop, laminate shell and mesh door that make a bivy livable. The Storm Bivi gives up some breathability and the hoop for a lower spend.

Rab Ridge Raider Bivi

Rab Ridge Raider Bivi

Buy it

A hooped, freestanding single-skin bivi with a three-layer breathable shell and room to sit up.

  • Rab states an overhead hoop at the head end plus a micro pole at the foot, so the fabric stays off your face.
  • The 15D Pertex Shield Air shell is stated at 15,000 mm hydrostatic head and 20,000 g/m2/24h MVTR.
  • A zipped entry with an internal mosquito mesh door, nine DAC V-stakes and three guy lines are included.
  • At 890 g it weighs roughly double the Alpine Bivi.
  • It packs to 32 x 15 cm, much bigger than a flat bivy.
  • It is the most expensive way to avoid carrying a tent.
Check price on Amazon
Rab Storm Bivi

Rab Storm Bivi

Buy it

A coated-nylon bivi with a stated spec sheet, sized for larger sleeping bags.

  • The 40D nylon top is stated at 10,000 mm hydrostatic head with a tougher 70D nylon base also stated at 10,000 mm.
  • Rab says the 3D construction is meant to fit larger sleeping bags.
  • It packs to 25 x 12 cm at 547 g, and the maker names bikepacking, mountaineering and multi-day treks as uses.
  • The shell is a coated fabric stated at 10,000 g/m2/24h MVTR, below the laminate bivis from the same brand.
  • The maker page does not say whether it has a hoop or pole.
  • It is heavier than the Alpine Bivi by roughly 100 g.
Check price on Amazon

Side by side

Rab Ridge Raider BiviRab Storm Bivi
Our verdictBuyBuy
Best forHikers and bikepackers who want rain protection and sitting room without carrying a tent.Buyers who want a real waterproof bivy with published numbers and a lower spend than the laminate models.
Price tier$$$ · premium$$ · mid-range

The bottom line

Our overall pick is the Rab Ridge Raider Bivi - A hooped, freestanding single-skin bivi with a three-layer breathable shell and room to sit up. Choose the Rab Storm Bivi instead if buyers who want a real waterproof bivy with published numbers and a lower spend than the laminate models.

Want the full picture, including the other options we compared and the popular one we'd skip? Read the complete The Best Bivy Sacks: 4 Compared (and One to Skip).