Mountain Equipment

Helium Solo Sleeping Bag: 41F Down

That zero-degree bag is awesome when your breath is freezing to your eyelashes, but when you're more concerned about weight than not freezing to death, an ultralight bag like the Mountain Equipment Helium Solo 41-Degree Down Sleeping Bag is where it's at. With just enough superlight 725-fill down to keep you warm through mild summer, spring, and fall nights, the Helium's perfect for trekking, bike packing, river trips, and any other mild adventure, and it checks in at a staggeringly light 14oz—that's well under a pound, if you needed reminding. It's still rated to stay comfortable well into the 40Fs, decked out with soft but tough downproof fabrics, and comes with key features like an anti-snag zipper baffle and collar to seal in heat, stitch-through construction to keep the down evenly distributed, and a 3/4-length zipper that lets you open the bag up and use it comforter-style on warm nights. Mountain Equipment tossed in a stuff sack for easy travel and a storage sack to keep the Helium lofty when you're not sleeping in it.