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#7 on this list
Jupiter Bivi
Terra Nova
Best breathability-to-weight in a true UK-made storm bivy.
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- How we assessed it
- Specification researched
Specs side by side
| Spec | Jupiter Bivi | Pro Bivy |
|---|---|---|
| Maker | Terra Nova | MSR |
| Model | Jupiter Bivi | Pro Bivy |
| Primary Use | Mountaineering, Fast-and-Light Backpacking | — |
| Fabric | Terra Nova Watershed (proprietary) | — |
| Origin | Made in UK | — |
| Waterproofing | — | Xtreme Shield |
| Weight | — | 13 oz (approximate) |
| Entry | — | Side Zipper |
| Head End | — | Small mesh panel |
What our reviewers liked and didn't
Jupiter Bivi
- Excellent breathability for a fully enclosed bivy
- Robust waterproof protection in severe weather
- Very lightweight and highly packable
- Durable Watershed fabric withstands field abuse
- Made in the UK with high quality standards
- Limited internal space, can feel restrictive
- No features beyond basic shell protection
- Higher price point compared to some alternatives
Pro Bivy
- Xtreme Shield laminate ensures long-lasting waterproofness without re-treatment
- Highly durable floor and fabric resist abrasion and punctures
- Excellent packability for fast-and-light missions
- Reliable weather protection in exposed conditions
- Simple, no-frills design prioritizes function over features
- Limited ventilation can lead to condensation in humid conditions
- Minimal interior space, not for lounging
- Less bug protection compared to a fully enclosed tent
Prices change constantly — the figure shown is the last verified catalog price, and the buy buttons always go to the current listing.