Hump dry waterproof rucksack coverits simple its effective its versatile and its waterproof a waterproof cover for your rucsac or pannier in bright and reflective materials which is highly visible from the side and the rear elasticated edging and press stud fasteners ensure that the hump fits snugly over your rucsac or pannier bag and will not flap around day glo yellow and orange waterproof material with chevron pattern is bright and very noticeable by day and the reflective tape mater