Ogio - S2 4L Tank BagThe S2 is a fixed 4L tank bag with a top made from single shot molded PU with Carbon Fiber graphics and the bottom of a single shot molded PU with matte finish. This bag is water resistant, features a see through phone window, power cord port, internal removable storage pouch and shoulder strap. A great bag for everyday use, the S2 is packed with features to make carrying small items convenient. Single shot molded PU exterior is water resistant and