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When every gram counts and warmth canāt 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 PertexĀ® Endurance® UL variation with 950+ fill power down is our lightest mummy bag ever.
Available in 20 Degree & 30 DegreeĀ options.
Looking for the Merlin 30 UL? You’re in the right place! The Merlin 30 has been renamed the Hummingbird 30.
Hummingbird too tight for comfort?Ā Check out the SwallowĀ or SwiftĀ for the same great features with a little more room.
UL: Ultralight. PertexĀ® EnduranceĀ® 10 denier water-resistant/breathable fabric.

OutdoorGearLab rated theĀ Hummingbird UL 30Ā theirĀ Top PickĀ Award
Check out what they had to say about this ultralight sleeping bagĀ Read the Review
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
- 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 | 58″ shoulder / 52″ hip / 38″ footbox |
| Zipper | Left Side |
| Shell | PertexĀ® EnduranceĀ® UL |
| Lining | Flite 15 denier ripstop nylon |
| Fill Power | 950+ Goose Down |
| Origin | Made in Seattle, USA of imported materials |
| Temp Rating | 20ĀŗF / -6.67ĀŗC | 30ĀŗF / -1.1ĀŗC |
|---|---|---|
| Fill Weight |
Reg 14 oz / 397 g Long 14.6 oz / 415 g |
Reg 11.5 oz / 327 gĀ Long 12 oz / 342 g |
| Average Weight |
RegĀ 1 lb 8 oz / 680 g LongĀ 1 lb 9.4 oz / 720 g |
RegĀ 1 lb 5.4 oz / 606 gĀ LongĀ 1 lb 6.4 oz / 635 g |
| Packed Size | 9L | 8L |
















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