The F10 Series Vulcan –7° Sleeping Bag is the logical home for outdoor enthusiasts & experts. Featuring Hydro Barrier Down in a reflective V baffle construction, all wrapped in lightweight, soft, 20D nylon fabrics to ensure a sound night’s sleep in warmth & comfort. The ethically sourced down achieves a great warmth to weight ratio. This results in a low comfort temperature rating coupled with low weight, ideal for pushing the limits of minimum gear maximum adventure.