The motorcycle tank bag has a total of 3 pockets, the transparent pocket (W3.74"xH6.30" is used to conveniently view the mobile phone or navigator (not used for the touch screen), and the small pocket is used for keys, cigarettes, lighters and other accessories. The main pocket is used to hold larger sized items. Waterproof Oxford cloth is used, which is waterproof and wear-resistant. There are powerful magnets on the back to better secure the pack to the motorcycle fuel tank, as well as fastening straps.
http://www.qxcase.com/outdoor-bags/