This large volume accessory pocket adds 5L capacity to the front of any pack, for easy access to essentials on the go. Airvent Agility. Compression Straps. 2 Extra Side Pockets. 1 Back Compartment. 4D Map Compartment. 2 Internal Pockets. 1 Trash Pocket. 1 Top Bottle Elastic Holder. Custom System. Race Number Snap. Custom Complete Attachment System.