Therm-a-Rest Boost 650 Down Sleeping Bag

Built for bodies of all shapes and sizes, this sleeping bag features a patent-pending WarmZip center zipper that adjusts internal space and tucks insulation around you to boost warmth by up to 10°F. The inclusive size range includes Wide options for every length, giving people with broad shoulders—or anyone who wants more room than a traditional mummy bag—the space to sleep naturally. The 650-fill Nikwax Hydrophobic down stays warmer when damp and dries faster than untreated fill, while the 100% recycled nylon shell keeps the environmental footprint low. At 2 pounds 11 ounces in Regular/20°F, it balances comfort and packability for backpackers who prioritize a good night's sleep.

• 100% Recycled Nylon
• Imported
• Built for everybody and bodies of all shapes and sizes, the Boost 650 is an ultra-comfortable backpacking sleeping bag with adjustable shape and warmth

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