Swallow UL 20

Hands down the most popular bag we've ever made and for good reason. With a more relaxed cut and lighter weight than most mummy bags on the market, the Swallow is the definition of an ideal all-around backcountry sleeper in a temperature rating that can satisfy a wide range of conditions.

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  • Mummy shape (medium width) with #5 YKK two-way, separating zipper with locking sliders
  • 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
  • Overlapping dual-webbing zip guard guides the fabric away from the zipper and eliminates the need for a stiff or heavy fabric layer that can interfere with the draft tube seal
  • Includes storage bag & stuff sack


Temperature Rating 20ºF / -6.67ºC
Dimensions 60" / 56" / 38"
Length Reg: 6' 0" / 183 cm
Long 6' 6" / 198 cm
Sleeping Bag Shell Fabric Pertex® Endurance UL
Lining Fabric Flite 15 denier ripstop nylon
Fill Power 900+ Goose Down
Fill Weight Reg 16.8 oz / 476 g
Long 17.5 oz / 496 g
Average Weight Reg 1 lb 12 oz / 801 g
Long 1 lb 13 oz / 838 g
Packed Size 7" x 12" | 9L
Zip Side Left
Country of Origin Manufactured in the USA from imported materials
Standard Mummy Sleeping Bag Sizing

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Reviewing: Swallow UL 20

Customer Reviews

  1. Awesome

    by Guest on Aug 20, 2013

    Ordered the Swallow with the Pertex UL fabric and it is hands down the best bag I have ever used. I ordered it, and within a week and a half it was waiting on my door step. It is the definition of quality. The folks at Feathered Friends have a customer for life. Couldn't be happier.
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