Feathered Friends Swift UL 30 Sleeping Bag

The Swift UL 30 is the widest mummy bag Feathered Friends makes, with a 155 cm shoulder girth, 145 cm hip and 112 cm foot width, filled with 438 g of 950 fill-power RDS-certified goose down for a -1°C limit rating and 732 g total weight. It sits between the Swallow UL 30 and the -7°C Swift UL 20 in warmth, but ahead of both in room to move. Construction follows the rest of the UL range: continuous horizontal baffles, a Pertex Quantum Pro 7D/30D shell, Flyte 10D recycled liner with a reinforced Diamond Fuse footbox, full-length two-way zipper with draft collar and draft tube, and an adjustable 3D anatomical hood cut for a 182 cm user. A trapezoidal foot box and coupleable zipper let it pair with a second bag for double-wide sleeping. At 732 g for a 30°F bag, the width comes at a real weight cost compared to standard-cut mummy bags, so it suits side sleepers and hikers who value shoulder room over shaving grams — including couples wanting to zip two bags together.