School backpack Porter - the spacious all-rounder. Easy-Grow-System: infinitely adjustable shoulder straps via a rotary mechanism inside the backpack - while the child is wearing it. Back padding made of soft air mesh for a comfortable carrying experience, ventilation chambers ensure optimal air circulation. Five compartments for all school supplies: two large main compartments with an integrated book compartment, an organizer compartment, a spacious front pocket, and another front pocket, e.g., for a lunchbox. Additional volume expansion of five liters: simply open the back zipper. Reflective strips and surfaces for optimal visibility in the dark, with the option to attach an LED light for increased visibility. Easily customize the school backpack: includes a Velcro patch, extra purchasable Colour Up sets available - consisting of a patch and a pendant, with an extra loop on the backpack for the pendants. Additional mesh pocket on the hip belt. Strap bands on the front for attaching a jacket, helmet, skateboard, or neon pullover set. Attachment option for a tablet/laptop bag, which can be secured depending on size and backpack model to loops in the organizer compartment or with clips on the book compartment. 4 years warranty. 2 outer pockets made of stretchable mesh material for water bottles. Padded, S-shaped shoulder straps with load adjustment straps for optimal fit to the back. Height-adjustable chest strap. Side compression straps to position weight close to the back. Removable hip belt. Padded carrying handle and additional hanging loop. Padded, stable backpack base. 100% PFC-free and bluesign® certified coating. 100% PVC-free. All textiles are made from 100% recycled PET bottles (40 PET bottles per backpack). Climate-neutral balance and produced socially responsibly and sustainably (bluesign® system partner).