At the bottom I store my sleeping bag in a separate compartment. In the main compartment is the camera cube (more on that in a moment), and on top of that my sleeping mat, provisions and warm clothes. On the edge of the inside there is a separate pocket for a drink bladder with 3l capacity. The head compartment is an ingenious design. It can be easily removed and used as a standalone bag using the shoulder strap provided. This is where I store all my important documents, money, tissues, medicine and my headlamp. I can take the bag anywhere while leaving the backpack in the car, tent or shelter. On its exterior, the PhotoSport Backpack Pro 70l AW III doesn't skimp on attachment options, either. I stow my rain gear in a pocket at the front with quick access. Side pockets hold my Gitzo GK2545T-82QD tripod, as well as a 1l water bottle. I can also easily attach my hiking poles and crampons for glacier tours.