A 15F semi-rectangular bag built for vehicle-based camping rather than pack weight. Free-Flow Zip opens either side or the footbox for full ventilation. Two Basecamps zip together as a double, or unzip the upper section for use as a quilt. 650+ fillpower RDS-certified duck down with vertical chest baffles to keep fill from migrating overnight. The pick for car camping and overlanding over backpacking.
Sea to Summit
Basecamp Down Sleeping Bag
Shipping
$414
1 retailer
At a glance6 specs
fit
Semi-rectangular
fill
RDS-certified duck down
features
Zips to double, Opens to quilt, Free-Flow Zip, Vertical chest baffles
use case
Vehicle-based camping
temp rating c
-9
temp rating f
15
Where to buy
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Description
Last reviewed May 16, 2026
Full specifications
7 fields
| fit | Semi-rectangular |
|---|---|
| fill | RDS-certified duck down |
| features | Zips to double, Opens to quilt, Free-Flow Zip, Vertical chest baffles |
| use case | Vehicle-based camping |
| temp rating c | -9 |
| temp rating f | 15 |
| fill power plus | 650 |
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