Swallow 20 YF Sleeping Bag

Proving why classics have such staying power, the Swallow’s ideal combination of lightweight warmth and comfortable fit has made it a customer favorite year after year. Based on one of our original designs, the Swallow YF is updated with a Pertex® Y Fuse shell and premium 900+ fill power down. Of our 20 degree sleeping bags, the Swallow is more spacious than the Hummingbird and narrower than the Swift. An ideal all-around backcountry bag, the Swallow is perfect for a wide range of summer conditions.

Our YF line of sleeping bags feature a lightweight, 100% nylon Pertex® Quantum® shell that uses yarns with unique Y-shaped filaments to create a fabric with increased downproofing and water beading properties, even after years of use and washing.

YF: YFuse. Pertex® Quantum® 20 denier water-resistant/breathable fabric.

Availability: In stock

Availability Information

From: $449.00

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  • Passive collar provides an extra cushion of down around your neck to trap the heat
  • Trapezoidal footbox allows your feet to fall in a natural pose without compressing the sides
  • Continuous baffles let you position the insulation where you need it
  • 3D contoured hood opens wide for warm nights and cinches tight when the temps start to drop
  • Generous draft tube prevents cold air from seeping past the zipper
  • #5 YKK two-way zipper with locking sliders
  • Top-stitch construction ideally suited to our ultralight fabrics
  • Includes storage bag & stuff sack


Mummy Sleeping Bags

Feathered Friends standard-width mummy sleeping bags are ideal for most people - a balance of space without too much excess.

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

Length Reg 6' 0" / 183 cm | Long 6' 6" / 198 cm
Dimensions 60" / 56" / 38"
Fill Power 900+ Goose Down
Fill Weight Reg 16.8 oz / 476 g
Long 17.5 oz / 496 g
Lining Fabric Pertex® 20 denier nylon taffeta
Country of Origin Sewn and filled in the USA from imported materials
Packed Size 9L
Average Weight Reg 28.7oz / 814g
Long 30.3oz / 858g
Sleeping Bag Shell Fabric Pertex® YFuse®
Temperature Rating 20ºF / -6.67ºC
Zip Side Left

Customer Reviews (3)

Bag durability Review by Mstem
Hi after only about a month of having the sleeping bag it’s began to show tears and in the fabric I was wondering if there is a warranty or repair service for the bags?


Hey! We do have a warranty policy on our sleeping bags as well as a repair service. Check out our Warranty Info page found at the bottom of any page under "Support" and get in touch with us. We'd be happy to help!

Feathered Friends (Posted on 3/8/2019)
Swallow YF LongReview by Jrollinger
I have used this bag a handful of times now. It has performed wonderfully on nights ranging from the upper 50’s down to right around 20. Never have I been cold. On the warmer nights the bag works great unzipped and used like a quilt. I have spent about 4 nights with the bag during 20 degree lows. With a proper sleeping pad and wearing a good base layer, I was happy as could be. Although I cannot speak to the durability as of yet (I’ve only had the bag since July) I am pleased with the materials. The shell appears to be tough, while the interior is soft to the touch and very quiet. I look forward to buying a good down jacket from FF next! (Posted on 2/3/2019)
Wow - Unmatched QualityReview by Jonathan
My Swallow 20 YF Long in marine just arrived and weighs in at 30.6oz. Feathered Friends legendary construction quality appears to remain top notch with the new fabric which is impressively soft. Looking forward to testing the durability over the next 30 years! (Posted on 5/23/2018)

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