The Big Agnes Wind Lip 28 Degree Sleeping Bag is a mummy shaped sleeping bag for the traditional backpacker. The Wind Lip has been traditionally insulated (no pad sleeve), so when you scramble into your bag at night, the Pinneco Core synthetic insulation surrounds you completely. The Insotect Tubic insulation system uses vertical channels and DualVault to increase thermal efficiency throughout your body. A no-draft collar and zipper tube prevent the cold from sneaking their way inside your bag. When do we get to start calling sleeping bags sleeping pods?
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