Western Mountaineering Sycamore MF

The Sycamore MF departs from Western Mountaineering's usual mummy shape in favor of a semi-rectangular cut, trading some weight efficiency for interior room and versatility. Rated to 25°F (-4°C) and filled with roughly 482 g (17 oz) of 850+ fill-power goose down, it lands at 908 g total — noticeably heavier than the brand's mummy bags at a similar temperature rating, which tracks with the extra space and coupling ability. The 20D MicroLite XP microfiber shell is water-resistant rather than just DWR-treated, and the bag includes footbox ventilation and a simple drawcord hood rather than a fitted one — details suited to basecamp and river-trip use rather than fast-and-light backpacking. Full-length, two-way zippers allow it to couple with a second matching bag for double sleeping. This is a comfort-oriented three-season bag: fine for canoe or raft trips, family basecamping, or anyone who values room to move over shaving grams, but its weight and shape put it outside typical ultralight thru-hiking kit.