Western Mountaineering Alpinlite

The Western Mountaineering Alpinlite is a mummy-shaped sleeping bag rated to about -7°C (20°F) by the manufacturer, packing 540 g of 850+ fill power goose down into an 880 g total weight — a favorable warmth-to-weight ratio that puts it in serious three-to-four-season territory rather than casual summer use. The shell is a light 12D nylon ripstop with no additional water-resistance treatment noted, which keeps weight down but means the bag benefits from staying dry — worth pairing with a solid shelter in wet conditions. A fitted, adjustable hood plus an insulated draft collar and draft tube seal in warmth around the neck and zipper, features that matter more as temperatures approach the bag's rated limit. It's coupleable with a matching bag for double setups, ships with both a stuff sack and storage sack, and is made in the USA, fitting users up to 183 cm. This is a bag built for alpine and shoulder-season backpacking where low weight and real cold-weather performance both matter, not a budget three-season compromise.