Hummingbird UL 20/30 Sleeping Bag
Category: Three Season Bags
New for Winter 2025/2026: The Hummingbird UL gets all-new Pertex® Quantum Pro® shell fabric + Pertex® Diamond Fuse lining fabric in the footbox, plus new and familiar colors
When every gram counts and warmth can’t be compromised the Hummingbird is the versatile bag of choice. With the slimmest cut in our lineup, the Hummingbird leaves no room to spare; perfect for going fast and light. The Pertex® Quantum Pro® variation with 950+ fill power down is our lightest mummy bag ever.
Available in 20 Degree & 30 Degree options.
Hummingbird too tight for comfort? Check out the Swallow UL for the same great features with a little more room.
UL: Ultralight. Pertex® Quantum Pro® water-resistant/breathable fabric with 950+ Fill Power Down
Best for Fast and Light Adventures
"There may be no better bag out there when ounces really count the most"
- OutdoorGearLab's Top Pick
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Details
- Mummy shape (narrow) 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
- Pertex® Diamond Fuse 15 denier footbox lining that offers more abrasion protection for more nights at camp
- 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
Specs
| Ideal Sleeper Height | Reg 6' 0" / 183 cm Long 6' 6" / 198 cm |
|---|---|
| Dimensions | 57" shoulder / 60" elbow / 53" hip / 41" footbox |
| Zipper | Left Side |
| Shell | Pertex® Quantum Pro® 7 denier + 30 denier ripstop weave The durable water repellent (DWR) finish on our Hummingbird UL Sleeping Bags is made without intentionally added perfluorinated chemicals (PFCs/PFAS) |
| Lining | Flyte 10 denier recycled nylon + Pertex® Diamond Fuse 15 denier footbox |
| Fill Power | 950+ Goose Down |
| Origin | Made in Seattle, USA of imported materials |
| Temp Rating | 20ºF / -6.67ºC | 30ºF / -1.1ºC |
|---|---|---|
| Fill Weight |
Reg 14 oz / 399 g Long 14.8 oz / 420 g |
Reg 11.5 oz / 323 g Long 12 oz / 345 g |
| Average Weight |
Reg 1 lb 7.9 oz / 677 g Long 1 lb 9.1 oz / 713 g |
Reg 1 lb 5.2 oz / 601 g Long 1 lb 6.5 oz / 638 g |
| Packed Size | 9L | 8L |
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When it ships
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Standard Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.
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Standard Shipping · United States: $0.00
Express Shipping · United States: $3.99
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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.
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