Features three, primary storage zones - camera, device, and open to help keep your gear organized, protected, and ready for the fast pace of modern travel. Secure the pack to a rolling trolley via compression straps,Internal Dimensions: 29 x 15.5 x 27.5 cm (11.42 x 6.10 x 10.83 in) External Dimensions: 31 x 26 x 50 cm (12.20 x 10.24 x 19.69 in) Camera Compartment: 29 x 15.5 x 27.5 cm (11.42 x 6.10 x 10.83 in) Laptop Compartment: 29 x 2 x 46 cm (11.42 x 0.79 x 18.11 in) Weight: 1.8 kg (3.96 lbs) . Tablet Compartment Dimensions 9.4 x 0.59 x 12.00 inches The open zone at top of pack has multiple pockets and space for organizing smartphone, cables, pens, keys and other items The padded and removable waistbelt offers extra comfort and the ability to stash during travel Keep valuable gear protected from the elements with a built-in All Weather AW Cover.Tall, stretch-mesh side pocket for water bottle or tripod base (secure with side compression straps) Camera zone: adjustable padded interior and fast-access opening; Fits: DSLR with attached lens (such as Nikon D810 with up to 70-200mm f/2.8), 2-3 extra lenses Fits upto a 15" laptop, plus tablet, Large smartphone, headphones, hard drive, keys, etc.