This Janet McKinstry handmade bag is called the Back Pack Messenger bag. It can be worn as a backpack by looping the shoulder strap through a fabric loop that Janet has created at the top pf the bag or, the adjustable shoulder strap can be worn to carry the bag on the shoulder. It has large front and back outer pockets and 2 inside pockets as well. The size is 11″ H x 10″W. Made from upholstery fabrics and fully lined inside with a wonderful cotton fabric.. Made in Great Barrington, MA.