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Sea to Summit Basecamp™ 20 Sleeping Bag

sku# 169442
Sea to Summit - Basecamp™ 20 Sleeping BagSea to Summit - Basecamp™ 20 Sleeping BagSea to Summit - Basecamp™ 20 Sleeping BagSea to Summit - Basecamp™ 20 Sleeping BagSea to Summit - Basecamp™ 20 Sleeping Bag
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Product Info

With its extra wide fit and a thick, warm construction, the Sea to Summit Basecamp™ 20 Sleeping Bag is a great option for car campers who like to lay on their sides, thrash wildly in their sleep, or just like a bit of extra room and comfort. Two full length side zips helps ventilate on warmer nights, topped off with a foot box zip and elastic sleeping pad straps to really get comfy.

Product Details


30D Nylon Shell Treated with DWR


WaveLoft™ ConstructionWaveLoft™ is a unique construction technology designed to maximize loft and minimalize insulation weight. Instead of conventional flat layers of insulation (sewn flat on top of each other) or shingle layers (sewn in diagonally overlapping layers), WaveLoft™ creates curved layers which expand out from the shell to trap the greatest amount of air possible at a lower overall weight than existing synthetic insulation constructions.

Thermolite HL-1HL-1 high loft insulation is a fiberfill constructed with a unique 3D crimp of hollow-core and solid fibers, which provides excellent lightweight warmth with superior durability. The Thermolite insulation lofts up inside the Air Sprung Cells™ of our sleeping mats to prevent convective heat loss from your warm body to the cold ground.


Compressed Volume, Regular8.8L

Compressed Volume, Long10.9L


ShapeA generous shape to allow you to sleep in any position without compressing the down insulation and creating cold spots.

Elasticated Straps to Attach to a Sleeping Pad of Your Choice

Full-length Zipper Allows Top Section to Be Removed

Shaped Hood

Zipper Draft Tube

Forms a Snug Double Sleeping Bag By Zipping to Any Basecamp, Explore, Ascent, Trek, Journey, Venture, Altitude, or Traverse Sea to Summit Bag

Includes 70D Nylon Compression Bag

3 Season Rating


  • Insulation: Synthetic
  • Temperature Rating: 20
  • Shape: Rectangular
  • Warranty: Limited Lifetime
Size Long Regular
Length Long Regular
Zipper Location Left Side, Right Side Left Side, Right Side
Max User Height 6'4" 6'
Weight (lbs) 3.52 2.95
Weight (g) 1600 1340



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