Feathered Friends Penguin YF Sleeping Bag 10

The Feathered Friends Penguin YF Sleeping Bag 10 is a semi-rectangular winter bag conceived as a modular sleep-system base rather than a purely expedition-focused mummy. With 866 g of 900+ fill power goose down and a total weight of 1426 g, it carries a manufacturer limit rating of -12°C, and box-baffle construction keeps the fill evenly distributed across the roomier cut. The Pertex YFuse shell and NetPlus recycled nylon liner both carry Bluesign certification, while a draft collar and draft tube limit heat loss. Unlike the mummy-shaped Penguin YF models, this one has no hood sewn in by default — it's sold as an optional add-on, letting users tailor the bag to how they'll actually use it. The bag opens completely flat, so it doubles as a quilt or can be paired with a second unit for a two-person system. Handcrafted in Seattle, RDS certified, and shipped with a stuff sack and storage sack, the unisex Regular size fits up to 182 cm. It suits users who value room and versatility over a snug mummy fit.