Hummingbird UL 20/30 Sleeping Bag

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 s...