This Eastport Black Messenger Bag is made of 100 percent polyester, a durable material that is resistant to stains. The Eastport Bag has an adjustable shoulder strap that can be suited for different-sized people. A detachable shoulder strap can be removed so that the it can be carried by the handle on the top. The Black Messenger Bag has an external pocket that zips closed. The Eastport Bag also contains pockets that can hold pencils or pens or even other office and school supplies. The pocketed messenger bag features an internal polyester lining for easy clean-up.