Snugpak Bivvi Bag
Features: made from Paratex Dry, a lightweight, durable, 100% waterproof & breathable fabric. It makes an ideal protective shell for any of our sleeping bags, weighing only 340g. Exceptional breathability ensures user comfort in all conditions Hydro Static Head in Excess of 5000mm (Items with a Hydrostatic Head over 1500mm are generally considered waterproof) Outer Fabric treated with a Durable Water Repellant. (water repellancy can be maintained by a cool tumble dry after washing & periodic retreatment with suitable after care products such as Nikwax or Grangers)