The bag is firm, durable, wrinkle-resistant, high strength and has elastic recovery. As it is made with polyester, the bag is resistant, waterproof and washable. Its large-capacity design provides ample storage space. The back is cushioned and the straps are adjustable for maximised comfort. Zippered mesh pockets and layererd interior design suitable for holding laptop. On both sides are elastic mesh pockets convenient for storing water bottles. Dimensions: 31 x 20 x 47 cm.