Snugpak Bivvi BagWaterproof sleeping bag coverLightweight, waterproof and windproof, the Bivvi Bag provides protection from weather elements all year round and is small enough to be carried on its own for emergencies.Specification• Standard length - 300g / 11oz• Extra long - 320g / 11oz• Packs down to 13cm x 10cm / 5" x 4"• Fully waterproof 5000mm Hydrostatic Head• PVC taped seams• Mummy shape• Paratex Dry Fabric, 100% Nylon• Supplied with its own stuff sack with a mesh bottom