Starting this season, we have further refined the shoulder harness, integrating a pocket for a cell phone or airpods, and a pocket for a drink holder for a plastic bottle. With a PC sleeve, two pockets for peripherals, and two compartments for other personal items, you can store all your personal items in one bag. X-PAC: Made of 500D smooth nylon with a water-repellent acrylic dye (non-hydrolyzable).