This bag can be worn as a shoulder bag or crossbody bag, just by switching the strap placement. With a hidden front zipper pocket, and back zipper pocket, to keep things secure and safe. Inside we have a zip pocket, 3D pocket, slip pocket and sleeve pocket for an ipad. There is even  a key leash, keeping them from disappearing to the bottom of the bag. 
Apporx measurements 9"wide x 12" high x 3 3/4" wide