Hump big 50 ltr waterproof rucksack coverthe h50 is the big brother of the humprange it accommodates those large backpacks that are used for multi purpose activities it easily fits over a 50 ltr backpack whilst maintaining the cross fastening method found on the rest of the range like the others in the range the h50 fits over an existing backpack and fastens around its waist it also features an elastic binding that secures the cover firmly to the backpack stopping it from flapping around or