Tamrac 5784014 Evolution 4 Messenger Bag (Black) Quick release buckle and touch fastener closure Adjustable, foam-padded dividers in shuttle compartment 600 denier PolyTek with ballistic nylon exterior The Evolution Messenger 4 is a versatile, slim-profile messenger bag that converts from a camera bag to a briefcase Behind the shuttle is a foam-padded compartment that holds most 15.6? screen laptops. The zippered top opens away from the body for fast access to a camera with a lens attached. To convert it to a briefcase, simply remove the shuttle from the bag using the handles. A zippered pocket on the front flap is perfect for keeping keys and tickets readily accessible Gear can also be accessed by unbuckling and lifting the top flap. The main compartment can then be filled with files, paperwork, or other business or personal items