Interior Dimensions: H 7.5 x L 6 x D 4.5 inches (18.8 x 15 x 11.2 cm) The Yellowstone holds a regular dSLR camera body in the size range of the Nikon D700 and Canon EOS D5 with up to a (four) 4 inch lens attached. The Yellowstone is full of functional details such as; two padded shoulder straps for carrying as a shoulder bag, back pack or front tummy level bag, a weather jacket that also functions as a protective lens changing sack, a lens cloth, snap hook for keys, wire port for MP3 headphone wires, quick release buckle and water proof zipper access, lid that opens away from the body for unobstructed access, two bridge style dividers, useful mesh pocket in the lid, deep front pocket with storage sleeves, thin side pockets, bungee straps for carrying a light jacket, umbrella, or table-top tri-pod below the bag etc. The capacity can be adjusted to suite your immediate needs by attaching any one of M-ROCKs 10 modular bags securely to both sides of the Yellowstone. M-ROCKs Modular Belt 680 and Sling Belt 681 attach to the back of the bag. The build construction is rugged with water resistant exterior 600D fabric, dens closed cell foam reinforced with thin plastic panels and soft non abrasive lining providing solid protection of the contents. Your purchase is protected with M-ROCKs life time warranty.