Sea to Summit
Basecamp Down Sleeping Bag
Sold by the people who make it — no third-party seller in between.
Manufacturer list price (MSRP)
$414.00
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Overview
Basecamp Down Sleeping Bag The Basecamp takes vehicle-based camping to the next level. This version of the Free-Flow Zip system allows you to open either side of the bag or the footbox for the greatest ventilation possible. With a relaxed semi-rectangular fit, for even more space you can zip two Basecamp sleeping bags together as a double, or unzip the upper section for use as a quilt.
Specs
- Brand
- Sea to Summit
- Weight
- 1926 g · 67.9 oz
- Temp rating
- 16 °F | -9 °C (ISO 23537 Lower Limit, tested by Sea to Summit)
- Fill
- rds-certified, 650+ fillpower duck down with a non-pfc ultra-dry down treatment
- Shape
- Rectangular
- Material
- Nylon
- Seasons
- 3 Seasons
- Fill Material — Source: manufacturer · checked 2026-08-20
- Material Primary — Source: manufacturer · checked 2026-08-20
- Season Rating — Source: manufacturer · checked 2026-08-20
- Shape — Source: manufacturer · checked 2026-08-20
- Temperature Rating F — Source: manufacturer · checked 2026-08-20
Weight vs. category
91% heavier than the category average.
How it measures up
Against every one of the sleeping bags & quilts in the RidgeNote register with a published figure. Manufacturer-listed; sources and dates are on this page.
- Weight
- 4.25 lb (1926 g)
- Lighter than 13% of 24 weighed · #21 lightest
- +80% vs the median 2.36 lb
- Price
- $414.00
- Cheaper than 36% of 28 priced · #18 cheapest
- +7% vs the median $386.98 · $6.09/oz (median $8.20/oz)
- Temperature rating
- 16 °F
- Lower than 65% of 48 rated
- median 20 °F
The lightest of the sleeping bags & quilts on record is Gossamer Gear Cumulus x Gossamer Gear Aerial 330 Sleeping Bag at 11.6 oz — 1597 g less and $15.00 less.
The cheapest is Sea to Summit Boab Synthetic Sleeping Bag at $124.00 — $290.00 less and 616 g lighter.
RidgeNote verdict
Similar — lighter or cheaper
Compared with
Side by side on weight, list price and cost per ounce.
Related reading
What Is the Lightest 20 Degree Sleeping Bag in 2026
See how NEMO, Kelty, and Sea to Summit 20 degree bags compare by weight, price per ounce, and rank across the current shelf for 2026.
What's the Lightest Ultralight Sleeping Bag Worth Buying in 2026?
RidgeNote ranks 24 ultralight sleeping bags and quilts by published weight, from 11.6 oz to 72.0 oz, so you know what going lighter costs in ounces.
What Is the Lightest 30 Degree Sleeping Bag in 2026?
See which 30 degree sleeping bags and quilts weigh least, ranked by grams, ounces, and price per ounce across the full shelf.
Manufacturer list price (MSRP)
$414.00