This innovative messenger bag is made from recycled car inner tubes and bicycle tires! The bag measures 14.5 inches long, by 10.5 inches tall, by 2.5 inches wide. It has an adjustable strap 22 to 46 inch strap, and features a cell phone pocket, pen holders, and a divider on the inside.Please note that customers who have purchased this bag have said it is not as big as the expected. The measurements are accurate , but the tire rubber is not as fexible as other materials so it may be a tighter fit than a fabric bag of the same size.