Feathered Friends’s own description.
Want some serious functionality? The Penguin might be the ticket. The Penguin is our semi-rectangular modular sleeping bag. What does that mean for you? For starters, it functions as a roomy bag for one. Throw on an optional hood and you have a terrific pack camping bag. But the Penguin can take it a step further. Pair it with the optional Penguin Groundsheet, and voila! A comfy bag for two!
Sleeping bags rated 15 to 25°F ranked by maker-published weight: 21 models. Lightest: Therm-a-Rest Vesper 20°F/-6°C Down Quilt at 1.21 lb (550 g).
Sleeping bags and quilts rated 26 to 35°F ranked by maker-published weight: 16 models. Lightest: Zpacks Solo Quilt at 11.8 oz (335 g). Median 1.39 lb.
How to read a temperature rating, why fill weight matters more than fill power, per-size prices, and what the makers publish for the Kelty Cosmic 20, the Western Mountaineering line, NEMO, Sea to Summit, Mountain Hardwear and Therm-a-Rest.
