Perfect for carrying essentials, the 0.5L capacity ADV top tube bag fastens to the top tube and steering column with adjustable velcro strapsWaterproof zippered top opening for easy access to storage compartmentDurable PU coated splash resistant 600 denier nylonVelcro Straps7x1.6x3.330 c.i.BlackSmall (1-100 c.i.)