The ortlieb pd350 dry bag is a sturdy reliable dry bag with a waterproof roll top closure including a stiffener bar which also helps compression your packing a variety of colours and sizes are available to help you organise your packing and suit your requirementsall the bags feature two d rings to help with secure the bags in transit plus a bottom loop for fixing and holding during unloadingheight 75 cmcircumference 107 cmdiameter 34 cmweight 560 gvolume 79 l