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Sea to Summit Basecamp Synthetic 20 Degree Sleeping Bag | Double | 2023 Style

($220.00 Total)
Ordered before , delivered tomorrow! You got: 03:39 hours
Sea to Summit Basecamp Synthetic 20 Degree Sleeping Bag | Double | 2023 Style

The Basecamp Thermolite synthetic sleeping bag is for those who prefer a luxurious and versatile sleep system. Each side of the Basecamp has a full-length side zipper; a third zipper can be found in the foot box zipper. The result is unmatched ventilation and the ability to remove the entire top section to use as a quilt.

WaveLoft construction allows the Thermolite insulation to expand out into air-trapping curves for maximum warmth, and the overall shape of the Basecamp allows you to sleep in any position you choose.

  • High-quality Thermolite® insulation is loftier and more durable for lasting warmth
  • Full-length YKK® #5 main side zips and foot box zip provide unmatched ventilation and allow the top section to be removed and used as a comforter
  • Removable straps to secure a sleeping mat underneath the sleeping bag bag (note: the 30” wide Comfort Deluxe mat will not fit into these straps)
  • Shaped hood and zipper draft tubes keep cold out and warmth in
  • Form a snug sleeping bag for two by zipping to another Basecamp, Explore, Ascent, Trek, Traverse, Altitude, Journey or Venture sleeping bag
  • Includes 70D nylon compression bag.
Tested Lower Limit

20 degrees (F) - EN

Tested Comfort

32 degrees (F) - EN

Temperature Rating (F)

20 degrees (F)

Temperature Rating (C)

-7 degrees (C)


4 lbs. 13 oz.


30-denier nylon

Zipper Location


Insulation Type



Thermolite synthetic fibers


20-denier nylon

Sleeping Bag Shape


Fits Up To (in.)

72 inches

Shoulder Girth (in.)

136 inches

Hip Girth (in.)

128 inches