description When your backpack needs total protection from the elements, look no further than the ultra-packable waterproof Outdoor Rain Fly. Constructed from waterproof Terra Shell™ 50D recycled ripstop nylon with a 2,000mm hydrostatic coating and fully-taped seams, the Outdoor Rain Fly keeps your pack dry in the gnarliest of downpours. A cinchable elastic cord around the perimeter of the rain cover ensures it fits tightly around your bag, and laser-cut holes at the bottom allow any moisture that seeps in to quickly drain. When not in use, the Outdoor Rain Fly stuffs into a zippable mesh pouch that can hang on outside of your bag to dry out. Fabrics are Bluesign-approved and PFAS-free. Fair Trade Certified and 100% carbon neutral. 15-20L size fits:Outdoor Backpack 18LEveryday Backpack 20LEveryday Backpack Zip 15L/20L25-30L size fits:Outdoor Backpack 25LEveryday Backpack 30L (not recommended for the 20L)Travel Backpack 30L45L size fits:Outdoor Backpack 45LTravel Backpack 45L SPECS Dimensions14cm x 12cm (packed)28cm x 49cm x 18cm (deployed)Weight63 grams (0.14 lbs) Materials Waterproof Terra Shell™ 50D recycled 2x6 twin rip nylon with a 2,000mm hydrostatic coating Stretch mesh stuff pocket Durable #5 zipper Elastic shock cord with thermoplastic cinch hardware Bluesign-approved and PFAS-free What's in the box (1) Outdoor Rain Fly