Just like all Osprey packs, the Rook 50 delivers. This time with user-friendly and capable features that combine to make your next weekend in the woods a success-no matter your experience level. Featuring phenomenal ventilation, a capable and comfortable carrying system, 1/2 zippered sleeping bag compartment, an integrated and removable raincover, and side hipbelt pockets. The refined features you've come to expect from all Osprey backpacks. Amateur or ace, we have a feeling you'll be looking for any excuse to hit the trail with the Rook by your side.