M-ROCK announces the addition of two versatile backpacks, the Zion 523 adn the McKinley 524, to its M-ROCK EXTREME line of camera bags. The Zion 523 has been designed for the outdoors while the McKineley 524 has ben designed for the city. Both backpacks come with a single front access flap and can hold a SLR body with a battery pack and up to an eight inch lens attached. There is also room for four to six additional lenses or photo accessories. The top section inside the backpacks come with a nylon bag to transport hiking gear, lunch, and other electronic accessories. This bag is removable and the backpacks come equipped with spare dividers that can be expanded into the top section to increases the capacity of the camera compartment.