EVOC: Convenient companion: The versatile allrounder with wide hip wings for perfect fit is made for biking, but just as great for school, uni or your daily routine.Comfortable, well-ventilated air pad back paddingInternal TOOL COMPARTMENT with organiser functionalityExterior transport flap for your bike helmetHYDRATION SYSTEM COMPARTMENT up to 3l SPECIFICATIONSVolume: 12 lWeight: 590 gMeasures: 24 x 47 x 10 cm