Get full access to Outside Learn, our online education hub featuring in-depth fitness, nutrition, and adventure courses and more than 2,000 instructional videos when you sign up for Outside+ Sign up for Outside+ today.
When you make a purchase through our site, we may earn a commission.
Mummy bags aren’t known for their spaciousness, but the KSB 0°F offers plenty of room thanks to stretch-stitched baffles that can accommodate restless sleepers. Toggles on the bottom allow the bag to comfortably fit people both tall and short, which also makes it a good choice for kids hitting their growth spurt. And while buying a 0°F bag is usually an expensive proposition, the KSB is now on sale at Backcountry for $209.96, 30 percent off its retail price.