With 7 litre volume and with a big map pouch. 10 cm height. The tank bag can easy be removed because of the 4 suckers which ensure that the tank bag will stay in place. It is also equipped with a handle and a removable belt. The bag is waterproof but when you ride for hours in a rainstorm a water protection would be usefull. Sizes (L x W x H): ca. 30 x 24 x 10 cm