THE NORTH FACE Lumbnical Bum Bag Large Asphalt Grey. 00D Technical nylon face fabric with geo dobby emboss effect. Zippered inner security pocket with inner key clip webbing. Zippered outer pocket on top panel. Stretch mesh outer stash pocket with secure bungee loop is perfect for on the go water bottle storage. Perforated and ridged panel foam allows optimal comfort and ventilation. Volume 6 litres. Dimensions 15 cm x 42 cm x 13 cm .