Therm-a-Rest's Vela Double Sleeping Bag is one of the few double-wide bags that can pack small enough for backpacking. Its down insulation keeps things as light as can be while still providing a 41F European Norm comfort temperature rating, and Therm-a-Rest treated the insulation with Nikwax to retain its lofty warmth in wetter climates. The water-resistant shell offers additional wet weather protection, and full-perimeter side baffles prevent a single draft from disturbing your snooze. The Vela pairs with other quilts, bags, blankets, and sheets from Therm-a-Rest so you can customize a layering system specific to your needs.