Evoc joyride 4l backpackthe joyride 4l backpack from evoc is a light performance backpack developed for kids and provides excellent back ventilation thanks to evocs air tune system and air circulation technology it also offers exceptional carrying comfort and comes with the same practical features as the adult versions lightweight plenty of featuresthis lightweight backpack only weighs 300g and comes with plenty of features to keep the kids happy such as a backlight clip detachable hipbel