A rucksack for all occasions: Thanks to its 1,150 grams (without detachable elements, total weight 1,250 grams), it is a real lightweight among school rucksacks. With a capacity of 25 litres, it is just the right size. The large main compartment allows your child to organise their school supplies. There is room for snacks, sandwiches etc. in the spacious front compartment. The drinking bottle fits best in one of the two outer pockets with stretchy mesh material. There are straps on the front of the rucksack that allow your child to easily attach a jacket or helmet. Accessories such as the tablet/laptop bag can be attached to loops in the main compartment and the gym bag can be attached to the outside of the backpack. The JOKER grows with you thanks to the Easy Grow System. The height of the shoulder straps can be easily adjusted using a simple twist mechanism inside the backpack. This means you can easily adjust the size while your child is wearing the JOKER. The padded shoulder straps, a height-adjustable chest strap, side compression straps and a removable hip belt ensure a comfortable fit. The JOKER is delivered to your home with a patch. Additional "Colour Up" style sets are also available, which provide variety on the backpack with different motifs, materials and colours - for a cool look that kids will feel comfortable with even after moving to a new school. The illuminated strips and surfaces ensure optimum safety in the dark.