The three-season, 800-down filled REI Igneo is one of the best sleeping bags a weight-watching backpacker can carry. Rated to 19 degrees, the one-pound, 15-ounce bag stays warm in freezing temps, but breathes incredibly well on even the hottest days, so its innards don't become balmy. A water-resistant shell deflects the wet stuff, while the bag's unique insulation system keeps 60 percent of the down fill on the top half, where you need it most. It's cut comfortably snug around the chest, yet doesn't feel constrictive. Amazingly, it packs down to the size of a softball. [$329; rei.com]
Powered By ZergNet
Jimmy Fallon's Rules for Success
Work Your Ass Off, Make It Look Easy
Plus: The Wolf of Weed Street
ON NEWSSTANDS NOW
Is Monogamy Insane?
Life Advice from Jeff Daniels
Sign up to receive the Men’s Journal newsletter and special offers from MJ and its marketing partners.