It's like a closeout deal without the closeout. This Thermolite Microfilled sack has cozy touches not typically found on a summer bag, like extra chest insulation, a fleece liner at the feet, and a draft tube and full hood. And it still packs so small we stuffed it in a pannier on a bike trip through Spain and had extra room for clothes. 40ºF, 1.9 lbs; www.lafumausa.com
Bonus: It has a stash pocket.Bummer: A quick taper from hips to toes made some testers feel mummified.