Arb Pro bags are strong, durable, and stiff enough to stand up on their own. The Black 50lt is unique with additional zippered storage at the top for Safety Glasses, Gloves, or other smaller equipment that you need for easy and quick access. Large exterior compartment, with multiple additional exterior storage compartments, Daisy Chains, D-Rings, and Sleeve Pockets for all of your climbing gear. It has multiple carry handles, and also padded Backpack straps and a padded back panel to assist with comfort on those long walks back to your job site. With this on your shoulders, you'll be Back in Black!