Feathered Friends Hummingbird YF 20 Sleeping Bag

The Feathered Friends Hummingbird YF 20 is an ultralight mummy bag built for fastpacking and fast-and-light travel, where every gram counts. At a total weight of 741 g it carries 397 g of 900+ fill power goose down, putting it among the lighter three-season bags with a manufacturer-rated limit temperature of -7°C. The Pertex Quantum 20D mini-ripstop shell resists down migration and sheds light moisture, while the NetPlus liner is made from recycled nylon taffeta sourced from fishing nets — a detail that matters to anyone weighing sustainability alongside weight. A contoured hood, draft collar and a draft tube along the zipper cut heat loss, and the full-length two-way zipper lets the bag open flat like a quilt. RDS-certified and handcrafted in Seattle, the Regular size fits users up to 182 cm, and both a stuff sack and storage sack are included. This is a bag for experienced users who prioritize low pack weight over all-around warmth, layering clothing as needed on colder nights.