Lightest premium
Images: Rab and its retailers. Used for product identification.
Rab
Rab Alpine Bivi
A 440 g Pertex Shield Air bivi with a bathtub floor for alpine and bothy nights.
- Weight
- 440 g
- Waterproof
- 15,000 mmBreathable fabric
- Packed
- 25 × 12 cm
Best price found
£249.99
at Ultralight Outdoor Gear · In stock · RRP £299.99
Prices checked 31 October 2026. We may earn a commission on these links.
- Waterproof
- Breathable
- Taped seams
- Zip
- Bathtub floor
Specifications
- Weight
- 440 g
- Packed size
- 25 × 12 cm
- Fabric
- Pertex Shield Air 15D polyamide 3-layer ripstop with air-permeable PU membrane and polyami
- Hydrostatic head
- 15,000 mm
- Open size
- 230 × 80 cm
- Entry
- Zipped entry
- Breathable
- Breathable fabric
Pros & cons
- Very light and packs to about the size of a 1-litre bottle, with a high 15,000mm HH shell
- Wide two-way zipped clamshell opening makes entry easy and allows venting; testers report very little condensation
- Bathtub base in tougher 40D nylon with taped seams
- Expensive at £300 RRP
- 15D upper fabric is thin and needs careful site selection to avoid punctures; independent testing of the newer Pertex…
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