Nylon 420D outer shell with Ripstop finish for greater tear resistance medium size tankbag with adjustable volume change and steep base suitable for most travel enduro tanks including inner waterproof liner and top carrier with clear mica and screen for road maps, navigation, phones or Ipad when the base is detached, it can be used as a backpack with a shoulder strap, rainproof entry to guide navigation cables, etc. reflective elements, volume 20 l