Quick Summary
The Lifesystems Venture Lite Bivi Bag is a lightweight bivi for fast and light outdoor travel. It is described as able to accommodate bulky clothing or a large sleeping bag, and the stated packed weight is 555 grams.
The main points to compare are the stated dimensions, packed size, weather protection details and the entry and airflow features. Those are the factors most likely to matter if you are choosing a bivi for a particular trip or pack setup.
Key Details
| Detail | Verified information and buyer relevance |
|---|---|
| Product type | Bivi bag for outdoor adventures. |
| Dimensions | 2500 x 950-620 mm head-foot, so the shape and length need to match your sleeping setup. |
| Packed size | 235 x 100 x 100 mm in its stuff sack, which matters if pack space is tight. |
| Weight | 555 grams, a key check for buyers watching carried weight. |
| Entry | Zipped entry point with rain flap. |
| Ventilation | Mesh panels are included to aid airflow. |
| Fabric | 70D ripstop nylon fabrics with taped seams. |
| Coating | Teflon EcoElite – Zelan R3 coating. |
| Water protection | 11,000 mm hydrostatic head stated for the top. |
| Breathability | MVTR: 15,000 g/m2/24hr stated for the top. |
What to Compare Before Buying
- Sleeping space: Check the stated 2500 x 950-620 mm size against your mat, sleeping bag and any bulky layers you expect to use inside it.
- Packed size: The packed stuff sack size is 235 x 100 x 100 mm, so compare that with the space available in your pack.
- Weight: At 555 grams, it is a notable part of a lightweight kit, especially for longer carries.
- Entry and airflow: The zipped entry, rain flap and mesh panels are useful details if access and ventilation matter on your trips.
- Weather protection: The top is stated to have an 11,000 mm hydrostatic head and 15,000 g/m2/24hr MVTR, so check whether those figures suit the conditions you expect.
Using It in Practice
The Venture Lite Bivi Bag is set up for compact travel where pack size and carried weight matter. Its shape and stated dimensions make it worth checking alongside the sleeping bag or clothing layers you plan to use, rather than treating it as a one-size option.
If you are building a lightweight overnight setup, it is sensible to pack the bivi with the rest of your sleep system first, then confirm the whole kit fits the space you have reserved in your rucksack.
Before You Decide
Confirm the size, packed dimensions and 555 g weight against your kit. Check the weather protection figures, and make sure the entry and airflow setup suits how you want to sleep outdoors.






