The Tamrac Evolution 6 is a mid-sized backpack with straps that can be stowed or adjusted to be a sling bag. Well built, with three access points to the main camera compartment, a rain cover, and a waist belt that can also be stowed. There's a strap and foot pocket for a tripod on the front. Main camera compartment measures approximately 16x15x13cm. In good condition, with some signs of wear.