New Mens Casual Chest Bag Outdoor Travel Multifuntion Shoulder Bag Crossbody messenger bag that has a built in USB port and comes with a USB cable. The bag measures 13? in height, 7? in width and 3? deep. It has an adjustable strap padded for comfortably with a strap drop length of 32? at the smallest adjustment and then can expand to 50? strap at the largest adjustment. The material is called Dacron, which is by definition, a brand of polyester textile fiber that is wrinkle-resistant, strong, and durable. The color is gray with black trim, black zippers and black buckles with pewter/fun metal zippers pull tabs and name brand insignia. There are 3 main zip pockets, an iPad compartment, an inner slot pocket, 2 inside pockets, a front anti-theft pocket and a USB port