SnugPak Bivvi Bag Olive. This Sleeping Bag Cover from SnugPak is made of Paratex Dry a technical lightweight durable 100percent waterproof/breathable fabric making an ideal protective shell for any of the Snugpak's sleeping bag. The SnugPak Bivvy Cover for Sleeping Bags has exceptional breathability that ensures user comfort in all conditions. Specifications for SnugPak Bivvi Bag: Manufacturer: SnugPak Color: Olive Bag Size: Regular Temperature Rating: Not Rated Zipper Type: No Zipper Gender: Unisex Age Group: Adults Condition: New Last Chance: Yes Package Contents: SnugPak Bivvi Bag SnugPak 91130: Bivvi Bag Olive