Hands down the most popular bag we've ever made, and for good reason. Compared to other mummy bags in the market, the Swallow is the ideal combination of light-weight warmth with room to sleep thanks to a more relaxed cut (more spacious than the Hummingbird, narrower than the Swift). The Swallow is the definition of an ideal all-around backcountry sleeper that can satisfy a wide range of three-season conditions.
Available in 20 Degree and 30 Degree options.
UL: Ultralight. Pertex® Endurance® 10 denier water-resistant/breathable fabric.
"Best Overall Sleeping Bag"
"This has become my go-to option for most of my backpacking trips, especially if temperatures are expected to approach or dip below freezing."
Details
- 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
- Includes storage bag & stuff sack
Additional Info
| Ideal Sleeper Height |
Reg 6' 0" / 183 cm Long 6' 6" / 198 cm |
|---|---|
| Dimensions | 60" shoulder / 56" hip / 38" footbox |
| Zipper | Left Side |
| Shell | Pertex® Endurance® UL |
| Lining | Flite 15 denier ripstop nylon |
| Fill Power | 950+ Goose Down |
| Origin | Made in Seattle, USA of imported materials |
| Temp Rating | 20ºF / -6.67ºC | 30ºF / -1.1ºC |
|---|---|---|
| Fill Weight |
Reg 1 lb 0.8 oz / 476 g Long 1 lb 1.8 oz / 505 g |
Reg 13.6 oz / 385 g Long 14.5 oz / 410 g |
| Average Weight |
Reg 1 lb 11.3 oz / 774 g Long 1 lb 12.7 oz / 813 g |
Reg 1 lb 8.1 oz / 683 g Long 1 lb 9.3 oz / 718 g |
| Packed Size | 9L | 8L |
Certified to the RDS
Our sleeping bags contain 100% Responsible Down Standard (RDS) down fill.
Certified to the Responsible Down Standard by TE-00118388.
Reviews
Customer Reviews
4.8 Based on 96 Reviews
Customer Photos
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01/26/2025
Anonymous
United StatesSwallow UL 20/30 Sleeping Bag
Overall could not be happier with my purchase! Quality is expected when making an investment like this and I can say with confidence that after two trips I made the right choice. Swallow UL 20/30 Sleeping Bag does run a little on warm side but could be due to unseasonably warm temperatures for time of year.
JC
01/01/2025
Jason C.
United StatesWonderfully Warm
Awesome bag. First use was in the Pecos Widerness in 18” of snow in October. Bag was super warm, to the point where I had to open it up in the AM. Packs down into a small package.
A
11/01/2024
Anonymous
United StatesMy first down sleeping bag
I’ve been using my trusty old synthetic bag for a very long time. It’s heavy, and I was going on a very strenuous overnighter and decided it was time to go lighter. My new feathered friends bag was excellent. Compact and light. So toasty. I could roll around at night and the mummy hood stayed right with my face. I never got turned around in it. I can’t wait until my next night(s) out with this bag.
10/21/2024
Anonymous
United StatesSwallow UL 20/30 Sleeping Bag
This bag performed well on its first trip. It was light, warm and comfortable. Best of all, it fit well, and I attribute that to the attention given while testing several sizes at the time of purchase.
AD
10/17/2024
Alistair D.
New ZealandBest sleeping bag ever
These sleeping bags are top tier, every detail is perfect, I'll be buying many more.