Western Mountaineering Alder MF

The Western Mountaineering Alder MF is a semi-rectangular sleeping bag rated to around -4°C (25°F), using 850+ fill power goose down inside a 20D MicroLite XP shell. At 880 g total with 455 g of down fill, it sits in a warm-weather niche rather than being a true three-season all-rounder — the rating suggests summer nights and mild shoulder-season trips rather than anything near freezing with margin to spare. The semi-rectangular cut trades some of a mummy bag's thermal efficiency for extra room, and the two-way zipper is the standout feature here: it lets the bag open completely flat, so it doubles as a quilt or comforter when a full mummy hood and cinched footbox aren't needed. That flexibility suits car camping, warm-weather backpacking, or anyone who runs hot and dislikes being zipped into a narrow bag. It packs down to 33 x 18 cm and comes with a storage sack (though no dedicated stuff sack), and is made in the USA. Fits users up to 182 cm.