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Therm-a-Rest Hyperion Sleeping Bag: 32F Down

$339.95 - $379.95

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Hyperion 32 Degree Down Sleeping Bag

New for 2019, the Hyperion 32 Degree Down Sleeping Bag is an ultralight backpacking option for those headed out into late spring or early fall conditions in uncertain weather. It features powerful 900-fill down insulation to keep you warm when the nights dip towards freezing, treated with Nikwax in order to retain heat-trapping loft if you encounter moisture on your trip. Cinch the draft collar down on colder nights for snuggle-worthy comfort, and rest easy knowing that a draft tube keeps cold air from sneaking through the zipper. The ergonomic mummy shape is built with mesh walls to maximize loft, and zoned insulation for maximum warmth with minimum weight. In addition to weighing in at merely a pound, the Hyperion packs down to little more than the size of your favorite 1 liter water bottle.

  • An ultralight sleeping bag for shoulder season backpackers
  • Hydrophobic down offers reliable warmth on cold, wet nights
  • Unrivaled packability ideal for long trips or minimalist campers
  • Ergonomic shape with longer zipper offers efficient comfort and fit
  • Zoned insulation places 70% of down fill where it's most useful
  • Detachable connectors let you integrate the bag with a mattress
  • Insulation sourced from humanely treated waterfowl
  • Item #CAS00EN

Material
[shell] 10D nylon ripstop, DWR finish, [lining] 10D nylon ripstop, ThermaCapture
Insulation
900-fill Nikwax Hydrophobic Down, RDS-certified
Shape
mummy
Zipper
left
Max User Height
[small] 5ft 6in, [regular] 6ft, [long] 6ft 6in
Shoulder Circumference
[small] 55in, [regular] 57in, [long] 58in
Hip Circumference
[small] 48.5in, [regular] 49.5in, [long] 51in
Foot Circumference
[small] 40in, [regular] 43in, [long] 46in
Bag Length
[small] 73in, [regular] 80in, [long] 85in
Draft Tube
yes
Pad Retainer
SynergyLink Connectors (removable)
Fill Weight
[small] 8oz, [regular] 9oz, [long] 10oz
Degree
32F
European Norm Comfort Rating
41F
European Norm Lower Limit Rating
5F
Storage Sack
yes
Stuff Sack
yes
Stuff Size
5.5 x 6in
Claimed Weight
[small] 15oz, [regular] 1lb, [long] 1lb 2oz
Recommended Use
backpacking
Manufacturer Warranty
lifetime

Tech Specs

California Proposition 65

Warning:

This product can expose you to chemicals including Toluene, which is known to the State of California to cause birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

What do you think about this product?

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>Rating: 5

Best Packable Sleeping Bags!

Familiarity:
I've used it once or twice and have initial impressions
Fit:
True to size
Size Bought
Small
Height
5` 6"
Weight
150 lbs

I purchased this as my 3-season sleeping bag and have no regrets! It packs down to about the size of a Nalgene and is perfect for backpacking, or just minimizing your load size. I'm 5' 5 3/4" and the small fits me just perfectly. The water resistance is great for keeping you warm despite frost and even withstood a brief and light rain (but I do recommend a bivy for rain).