Feathered Friends

Ptarmigan ES -25 Sleeping Bag

Ptarmigan ES -25 Sleeping Bag - Main image
$635.67 $1039 In stock

Category: Winter & Expedition Sleeping Bags

Built for big mountain expeditions and frigid conditions, the Ptarmigan is one of the lightest and warmest bags around. We combined the finest materials, including the cutting-edge Pertex® Shield Air fabric, and our time tested design to bring you a bag that can handle the rigors of mountaineering use and provide a warm respite at the end of a long day. 

We send more Ptarmigan sleeping bags to Denali than any other bag we make.

ES: Winter & Expedition. Pertex® Shield 15 denier with 40 denier rip-stop reinforcement fabric with water-resistant/ breathable coating with 3 Layer Pertex® Shield Air electrospun laminated fabric. 

Details

  • Mummy shape (average width) with #5 YKK two-way zipper with locking sliders
  • Pertex® Shield EX water-resistant/breathable shell with DWR with a Pertex® Shield Air electrospun panel on the top middle for added breathability
  • NetPlus® post-consumer recycled nylon interior fabric
  • Permanent collar with EX facing to prevent breath condensation from entering the bag
  • Side-block baffles maintain a 60:40 top to bottom insulation distribution
  • 3D contoured hood wraps a layer of down around your head
  • Generous draft tube prevents cold air from seeping past the zipper
  • Large side walls ensure even insulation all around
  • Overlapping dual-webbing zip guard guides the fabric away from the zipper
  • Tuck-stitch construction hides the baffle threads and prevents moisture from wicking through to the inside
  • 10" x 5" (25.4cm x 12.7cm) zippered interior pocket
  • Includes storage bag & stuff sack

Sizing

Mummy Sleeping Bags

The Feathered Friends Ptarmigan is built with our standard-width mummy shape - for most people, this will have enough space for a bit of extra gear without too much extra volume.

Regular Length
Fits up to 6' 0" | 183 cm

Long Length
Fits up to 6' 6" | 198 cm

Have questions on sizing? Feel free to Contact Us - We're happy to help!

Additional Info

Temp Rating -25ºF / -31.67ºC
Ideal Sleeper Height Reg 6' 0" / 183 cm 
Long 6' 6" / 198 cm
Dimensions 57" shoulder / 64" elbow / 53" hip / 38" footbox
Zipper Left Side, YKK #5
Shell Pertex® Shield EX (waterproof, breathable) with Pertex® Shield Air (waterproof, breathable) electrospun panel
Lining 20d 39g/m² nylon taffeta made from NetPlus® post-consumer recycled nylon.

NetPlus® helps reduce ocean plastic pollution by incentivizing fishing communities to turn in end-of-life nets for recycling before potentially ending up in the environment. Bluesign® Certified
Fill Power 900+ Goose Down
Origin Made in Seattle, USA of imported materials
Fill Weight Reg 2 lb 7.2 oz / 1112 g
Long 2 lb 9.2 oz / 1170 g
Average Weight Reg 3 lb 12.4 oz / 1713 g
Long 3 lb 15.6 oz / 1803 g
Packed Size 30L
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (4.8 / 5 · 5 reviews)

Aurora R. ★★★★★

I slept soundly through a -20°F night in the Rockies, and the draft collar sealed out every cold spot I usually curse in other bags. Weighing less than three pounds for that kind of warmth is honestly incredible.

Isabella E. ★★★★★

The Pertex shell shrugged off a night of spindrift without a single damp spot inside. At -20°F I stayed completely warm, and it still packs down smaller than my old synthetic bag. Worth every penny for serious winter use.

Emily W. ★★★★★

The temperature rating is no joke—this bag kept me warm during a -20°F night on Denali, and the Pertex® Shield shell repelled frost buildup all week. I was surprised by how little space it took up in my pack for the warmth it provides.