Massdrop has the Sierra Designs Men's Zissou or the Women's Eleanor with 700 fill power down waterproof down. There are options for the 30F and the 15F
Water-Resistant Warmth in 3 Temperature Ratings
Featuring the award-winning mummy shape of the original Sierra Designs Zissou sleeping bag, the Zissou Plus and women's Eleanor Plus add a quilt-style closure for a level of comfort that'll remind you of your bed at home. Each has a durable 30-denier polyester ripstop shell and a moisture-wicking polyester liner, insulated with 700-fill-power DriDown. The baffle construction keeps the down from migrating to eliminate cold spots, while the dual full-length zippers allow for easy ventilation when you need it. Along with a non-restrictive, adjustable hood, these bags have a roomy, ergonomically shaped footbox to keep you cozy from head to toe.