Head Base Backpack 17L Navy Blue 261335. Spacious and stylish Head tennis backpack. Racket compartment holds up to 2 rackets. Main compartment large enough for a change of clothes. One small front zippered pocket. Two open side pockets. Mesh back panel for ventilation. Comfortable, padded, adjustable shoulder straps. Specifications: Material: 100% polyester. Capacity: 17L. Dimensions: 54 x 33 x 13 cm. Main compartment, compartment for 1-2 rackets, zippered front pocket, and two open side pockets.