Top 10 · Compare
Compare Best Bivy Sacks head to head
Pick any two picks from this list and see specs, current price, pros, cons and reader ratings side by side.
Back to the full Top 10
#7 on this list
Jupiter Bivi
Terra Nova
Best breathability-to-weight in a true UK-made storm bivy.
- Price
- Check current price
- Reader rating
- No reader votes yet
- How we assessed it
- Specification researched
#8 on this list
Pro Bivy
MSR
Xtreme Shield laminate that never needs re-treating. Ideal for gritty desert camps.
- Price
- Check current price
- Reader rating
- No reader votes yet
- 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.