Maxpedition .. Sitka .. Black Single shoulder backpack designed to maximize utility when rotated towards front of body Main compartment: 15 high x 8 wide x 3 thick with internal organization Top front: 7.5 wide x 4 high x 2 thick with internal organization Bottom front: 8 high x 7 high x 2 thick with internal organization Main compartment and hydration compartment can accept CCW accessories