Overboard 30 litre dry flat bag description with a generous capacity super lightweight material and a handy removable strap the 30 litre overboard waterproof dry flat bag is the easy way to keep lots of gear dry and dirt free made of tough yet lightweight nylon ripstop tpu coated material this large dry bag folds into a tiny package when not in use and is easily wiped clean after muddy sessions and you can get as muddy or wet as you like because our trusty fold seal system tm and w