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Big Agnes
Thunderhead SL Sleeping Bag: 30F Down

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Minimalist backpacker's delight.

Maximize your mileage without sacrificing warmth on chilly evenings with the Big Agnes Thunderhead SL 30 Degree Down Sleeping Bag. This ultra-light bag allows you to move quickly across large swaths of wilderness without excess weight holding you back. It's rated to 30F, giving you versatility for three-season backpacking trips. The bag's minimalist design saves weight by replacing the zipper with a hook-and-clip system that's both intuitive and silent to operate.


Stuffed with 650-fill DownTek insulation, the Thunderhead SL maintains toasty warmth in freezing overnight temperatures. For wet conditions where traditional down would normally lose its heat retention, DownTek employs a hydrophobic treatment that repels outside moisture from sapping your warmth. To maximize thermal efficiency, vertically structured sidewalls use diagonal baffles to wrap your body, much like a cozy cocoon. This design helps you snooze soundly while your camp partners are shivering inside their bags.


Details

  • Maximize your mileage with an ultra-light bag
  • Zipperless design saves precious weight
  • 30F rating for three-season versatility
  • 650-fill DownTek maintains high-loft warmth
  • Hydrophobic down treatment repels moisture
  • Oversized anti-draft collar retains body heat
  • Half-pad sleeve for a secure sleeping interface
  • Based in Colorado's Rockies, Big Agnes makes premium camping gear
  • Item #BAG00AJ
Material
[shell] nylon ripstop, [lining] nylon taffeta
Insulation
650-fill DownTek
Waterproofing
[shell] DWR finish, [insulation] hydrophobic down treatment
Shape
mummy
Zipper
zipperless, with hook-and-clip system
Max User Height
[regular] 6ft, [long] 6ft 6in
Shoulder Circumference
[regular] 62in, [long] 64in
Hip Circumference
[regular] 52in, [long] 54in
Foot Circumference
[regular] 37in, [long] 39in
Draft Tube
oversized anti-draft collar
Pad Retainer
[width] 20in
Fill Weight
[regular] 12oz, [long] 14oz
Degree
30F
Stuff Sack
mesh storage bag
Stuff Size
nylon stuff sack
Claimed Weight
[regular] 1lb 12oz, [long] 1lb 15oz
Recommended Use
backpacking
Manufacturer Warranty
lifetime

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