45 x 29 x 19 cm / 17.7 x 11.4 x 7.5 inch. 24.8 liters. 97% recycled polyester, 3% polyurethane. Water-repellent. Buckles for board fixing. Square Label. Brand Restrictions At Stuarts. Stylist Notes. Constructed from a recycled polyester-blend canvas, the unlined Kickflip Backpack is a water-repellent style. The shoulder straps and back are padded for a more cushioned feel, while buckles throughout and elastic board straps on the front offer extra functionality.