Eider ES -10 Sleeping Bag
Eider ES -10 Sleeping Bag

Eider ES -10 Sleeping Bag

Regular price Sale price$919.00


Please view our Shipping information here for updated shipping times.

Once we receive your order, we will finish hand-crafting your sleeping bag right here in Seattle!

If you have an urgent deadline, do not hesitate to contact us.

Please check our Shipping Info page for current shipping times. Thanks!

The Eider is the roomier version of the Widgeon, which was originally designed for the successful American K2 expedition in 1990. The Eider is the go-to bag for cold weather activities from mountaineering to snow camping, or for those who plan to wear down layers while sleeping to push the comfort rating of the bag.

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. 


"The Feathered Friends Eider EX -10 bag hits just about every mark you could ask for in a cold weather bag."

Backwoods Pursuit, 2023

Backwoods Pursuit Logo Eider Sleeping Bag Review

See the in-depth, glowing review of the previous version of the Eider -10 from Backwoods Pursuit! Read Review


  • Mummy shape (wider width) with #5 YKK two-way zipper with locking sliders
  • Pertex 30 denier taffeta lining
  • Pertex® Shield EX water-resistant/breathable shell with DWR with a Pertex® Shield Air electrospun panel on the top middle for added breathability
  • Continuous baffles let you position the down where you need it
  • 3D contoured hood wraps a layer of insulation around your head
  • Generous draft tube prevents cold air from seeping past the zipper
  • 10" x 5" (25.4cm x 12.7cm) zippered interior pocket
  • Tuck-stitch construction hides the baffle threads and prevents moisture from wicking through to the inside
  • Includes storage bag & stuff sack


Mummy Sleeping Bags

Feathered Friends wide mummy sleeping bags have more space throughout, especially in the shoulders. This is perfect for those with broader builds, or those preferring to stash a lot of gear inside the bag.

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

Ideal Sleeper Height Reg 6' 0" / 183 cm 
Long 6' 6" / 198 cm
Dimensions 59" shoulder / 68" elbow / 55" hip / 40" footbox
Zipper Left Side, YKK #5
Shell Pertex® Shield EX (waterproof, breathable) with Pertex® Shield Air (waterproof, breathable) electrospun panel
Lining 100% Recycled 20 Denier plain weave 37g/m²
Fill Power 900+ Goose Down
Origin Made in Seattle, USA of imported materials
Temp Rating -10ºF / -23.3ºC
Fill Weight Reg 2 lb 1.8 oz / 960 g 
Long 2 lb 5.8 oz / 1072 g
Average Weight Reg 3 lb 6.2 oz / 1538 g 
Long 3 lb 11 oz / 1675 g
Packed Size 23L
Pertex® Shield® Air Panel

Pertex® Shield Air - The new, super-breathable technology from Pertex®. We strategically construct our new ES sleeping bags with a panel of Pertex® Shield Air on the top to allow more moisture to vent, while maintaining warmth and minimizing excess humidity.


We improved our dimensions for a more consistent experience across our winter & expedition sleeping bags.

The interior circumference of the sleeping bag is measured at four points: the shoulders, at the elbows, around the hips, and at the feet.

SHOULDER: 59" / 150cm
ELBOW: 68" / 172cm
HIPS: 55" / 139cm
FEET: 40" / 101cm

Interior Pocket

A 10" x 5" zippered pocket is integrated into the interior of the sleeping bag. Stash some hand warmers, your phone, or whatever you need when catching some zzzz's.