Perfect for electric cyclists: ALLMTN e28 fits perfectly, distributes weight evenly and offers plenty of space. includes Additional neoprene bag for eBike battery.Material: 420D ripstop nylon, PU coating, water-repellent.Anatomically shaped padded shoulder straps/Integrated removable rain cover.Ergonomically shaped back with ventilation holes for optimum air circulationDivided mesh compartments, special compartment for mini pumpPocket for helmet/mobile phone/sunglasses.