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#1 on this list
Helium Bivy
Outdoor Research
Pertex Shield with a single hoop pole. The reference for fast-and-light alpine nights.
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#2 on this list
Ridge Raider
Rab
eVent bivy-tent hybrid with a real vestibule. Wall bivouacs and winter ridges.
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Specs side by side
| Spec | Helium Bivy | Ridge Raider |
|---|---|---|
| Weight | 18 oz (approx) | — |
| Fabric | Pertex Shield 2.5L | eVent Waterproof Breathable |
| Waterproof Rating | Excellent | — |
| Breathability | Very Good | — |
| Packed Size | Small water bottle | — |
| Pole System | Single aluminum hoop | — |
| Maker | — | Rab |
| Model | — | Ridge Raider |
| Category | — | Bivy-Tent Hybrid |
| Primary Use | — | Alpine, Winter, Expeditions |
| Sleeping Capacity | — | 1 person |
What our reviewers liked and didn't
Helium Bivy
- Exceptional weight-to-protection ratio
- Pertex Shield offers good breathability for a bivy
- Single pole creates crucial headroom
- Highly packable and compact
- Reliable weather protection for its class
- Can still have condensation in humid conditions
- Limited space, not for lounging
- Requires a ground cloth for optimal durability
- Not ideal for prolonged, multi-day downpours
Ridge Raider
- Integrated pole creates excellent head room and small vestibule
- eVent fabric offers superior breathability and weather protection
- Allows comfortable sitting and gear management inside
- Highly durable, expedition-grade materials and construction
- Much more livable than traditional bivies
- Heavier and bulkier than minimalist bivies
- Higher price point compared to basic options
- Still more restrictive than a full tent
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