The Osprey ROOK 65 was made for adventures. Its simple and modern design provides maximum comfort and excellent fit on the back. It is easily adjustable, with a special ventilating back system. It is also compatible with Osprey Daylite backpacks, so you can attach a smaller backpack to the bigger one in order to increase the capacity. Used once on a 2-day trip, like new! Excellent condition. Hydration pocket 2 side pockets for bottles Removable straps for attaching a sleeping mat Side fastening straps sleeping bag compartment 2 zipper pockets on the hip strap zipper pocket in the canopy integrated rain cover