Topeak Mondopack XL with Velcro Strap and Extendable Back Pocket (12.6 X 5.1 X 6.3-Inch)
Two side opening panels provide huge access to all your gear and feature inner mesh pockets to keep items like keys and small tools secure while riding. Rear zippered panel allow the main compartment to expand providing even more storage when needed. An excellent bag for suspension bikes, folding bikes, endurance racers, randonnée, century / charity events, day touring or for cyclists who like to carry extra gear.