It is a full-sized book bag that measures 

14 inches long x 10 inches tall x 4.5 inches wide. 

It comes with a 1 inch wide strap that is adjustable and is 50 inches long.

The strap can be configured to enable the wearer to use it as a shoulder bag, a backpack, or as a messenger style bag.

The bag has two front outer pockets just under the front flap. 

The flap is closed with snaps under the silver buckles and tabs. 

Each pocket measures 5.5 inches wide by 7.5 inches tall.