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Sea To Summit
Basecamp Thermolite BT 4 Sleeping Bag: 5F Synthetic

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Comfy in the cold.

The Basecamp Thermolite BT 4 Sleeping Bag is Sea to Summit's warmest, fully-featured bag for camping in winter. Its Thermolite synthetic insulation keeps you toasty from late fall to early spring, and it stays warm in moisture-riddled environments. The bag's Perma Shell fabric pairs a water-resistant exterior with soft interior.


Sea to Summit equipped the Basecamp with a removable quilt that you can take on minimalist backpacking trips in summer. Loops all around the bag secure the quilt, a sleeping pad, and Sea to Summit's Aeros Pillow (both sold separate). This bag also features zippered foot vents, an adjustable hood, and draft tubes that line the dual full-length zippers.


Details

  • Spacious sleeping bag for comfortable camping
  • 5F temperature rating ideal from fall to spring
  • Thermolite insulation stays warm when wet
  • Pillow and sleeping pad retainer loops
  • Item #STS002P
Material
[shell] 30D nylon taffeta, DWR, [lining] 20D nylon
Insulation
Thermolite
Shape
contoured rectangular
Zipper
full-length dual
Max User Height
[regular] 6 ft, [long] 6 ft 5 in
Shoulder Circumference
[regular] 77 in, [long] 82 in
Hip Circumference
[regular] 75 in, [long] 81 in
Foot Circumference
[regular] 56 in, [long] 68 in
Draft Tube
yes
Pad Retainer
elastic straps
Venting
yes
Degree
5 F
European Norm Comfort Rating
18 F
European Norm Lower Limit Rating
-31 F
Storage Sack
yes
Stuff Sack
yes
Claimed Weight
[bag] (regular) 4 lb 10 oz, (long) 5 lb 9 oz, [quilt] (regular) 3 lb 4 oz, (long) 3 lb 12 oz
Recommended Use
camping, backpacking
Manufacturer Warranty
lifetime

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