Marmot

Never Winter Sleeping Bag: 30F Down

Average winter lows in Big Bend hover around 40, making it the perfect environment for the 650-fill goose down Marmot Never Winter 30-Degree Sleeping Bag. Really, though, the Never Winter's perfect for pretty much any spring, summer, or fall trip you can imagine, since it weighs just two pounds but comes loaded with features like stretchy tricot baffles, an insulated draft tube and collar, and a trapezoidal footbox designed to keep your toes warm and comfortable. Super lofty and light down doesn't insulate well if it gets wet, but the Never Summer's got a trick up its sleeve—the down has been treated with Down Defender, which helps it maintain loft and insulating value even if does get a little soggy.

That's not all, though. The Never Winter comes complete with a five-baffle insulated Nautilus hood to keep your brain warm, and a face muff that seals drafts out and warm air in. Cinch everything down, and the locking drawcord will keep it there, and stay out of your face at the same time. Guards prevent fabric from jamming itself into the two-way zippers, too, while a low-profile stash pocket holds small gear that you want to keep handy at night.