The Big HUMP takes the legendary Deluxe HUMP and makes room for everything but the kitchen sink!Constructed from fully waterproof fabric with taped seams, the Original HUMP keeps the contents of your bag drySafety yellow day-glo fabric feature highly reflective chevron prints and stripes to give you superb daytime and night time visibilityThe packaging doubles up as a reusable waterproof sleeve that clips into the inside of the coverThe mesh pocket is the ideal home for an LED light to further strengthen your visibilityElasticised binding ensures a great fit to most bagsThe elasticated snap buckle fasteners ensure that the Hump fits snugly over your backpack or pannier bag for a custom tuned fitIt can also be used to cover bike pannier bags for increased visibility and protection from the elementsDesigned to fit most backpacks between 40 - 50 litresHUMP's two year guarantee covers your backpack cover against manufacturing defects