The Alta Sky 42 is the smallest backpack in the Alta Sky series, designed to carry a mirrorless or DSLR camera with up to a 200-600mm lens attached and up to an additional four lenses Full rear opening, and can be set up for fast top access. Full-sized tripod carrying system and carries a 12.9" tablet An advanced ergonomic back and harness system features a well-padded, breathable back, easy-adjust shoulder straps that perfectly contour to your back and torso, and an adjustable sternum strap and waist belt that can be folded away when not needed No fumbling with bright-colored interior that makes finding things easy. Keep gear dry on the wet days with the included rain cover Inside dimensions: 9.3 x 5.9 x 18.5" Exterior dimensions: 10.6 x 9.4 x 19.9". Weight: 4.1 lbs. Max. load: 26.5 lbs. Liter capacity: 16.6