4SR Hydrobag is a practical and often used helper in endurance motorcycle racing, it is also suitable for summer rides. Simply insert the hydrobag into the aerodynamic hump. Due to its shape, it can also be inserted into the most manufacturers' tracksuits. 4SR Hydrobag: Material: Termoplastic Polyurethane TPU, BPA-free Volume 0,5l Size: 20cm x 11cm x 6cm Replaceable hydrobag drinking straw included Universal use Do You Have Any Questions? info@4SR.com