Ultrasonic welded seams (inside liner only) with reinforced waterproof fabric. Large main zippered opening with padded and ventilated back panel. 3 external storage zippered compartments. Dual side mesh pockets. Ergonomic, adjustable shoulder and sternum strap. FABRIC: Shell: 100% Polyurethane, Shell-Secondary: 100% PVC, Lining: PVC and Polyester. Size: 19 H x 10 W x 7.5 D; Volume: 23L / 24 CAN