The Alta Sky 53 is a Dynamic backpack that sets a new standard for adaptable carrying and working solutions. It offers versatility combined with reliable gear protection like never before! featuring a fully customizable main large compartment with rear access and a separate top opening. The multitude of Dividers and access points leave you the choice of just how much professional gear and how much personal gear to carry. Maximum capacity can fit up to 1-2 Pro DSLRs with attached lens (up to 300mm f/2.8 lens), 6-8 lenses, 2 flash units, and accessories, or a drone with all related accessories, using the dedicated dual use/dual color drone action Dividers +1 Pro DSLR with attached lens. If carrying less gear one can easily turn this backpack into a hiking backpack. Secure rear compartment protects up to a 17” laptop and can also fit a tablet in the additional padded sleeve (Note that double usage is only possible for some laptop + tablet combinations). organize all other gear and personal essentials such as memory cards, cables, batteries, charger, and smartphone, exactly where you need them; either secured in an organizer pocket, or on hand at any given moment in a slip-in pocket. Stay hydrated with two large side pockets for water bottles. Link, hang, and sling on anything you can imagine using the multitude of straps, loops, and innovative connection features integrated into the surface of the backpack. Designed to carry heavy gear loads for extended periods of time, we set the bar for comfortable carrying at a new high. Our advanced ergonomic back and harness system features a well-padded breathable 3D back, uniquely shaped easy to adjust shoulder straps that perfectly Contour to your back and torso, adjustable sternum strap, and well-padded supporting waist belt. Various advanced tripod connecting systems enable you to select the best transport solution for your tripod, lighting stands, and hiking sticks.