Ergonomics The perfect fit ergobag relieves children's backs through equal weight distribution! It is equipped with the professional "Your-Size-System" adjustable back-support system that can be individually adjusted to any children of height from 1.0m to 1.50m. The durable pelvic fins distribute the weight of school books evenly on the more sturdy pelvis, while arms are free to move with the adjustable chest strap.ergobag is endorsed with the "Ergonomic Product" quality seal from Germany's IGR e.V., and is the recipient of the IGR Innovation Prize for Ergonomics! Adjusting ergobag for the Perfect Fit 1. Set the height Fold out the back panel and set the straps to the height of the child on the printed scale. Adjust the height as required as the scale is purely indicative as every child's body is unique. 2. Buckle up Close the hip belt and pull tightly. This allows the redistribution of the backpack weight from the shoulders to the stronger lower body. 3. Tighten the shoulder straps Adjust the shoulder straps by pulling the strap backwards and down tightly. 4. Close the chest strap Close the chest strap at a comfortable height and tighten to prevent the shoulder straps from sliding off the shoulders. Features Internal separate compartments for optimal weight distribution Reflective strips all around for added visibility on all sides. Waist strap compartment pocket to conveniently store your bus card or small money change. Change your backpack designs with our colourful Kletties or design your own velcro patch. Loops near the buckle to attach plush toys and other pendants Sustainability Fond Of, the company behind ergobag, has received the elite "Leader" status from the independent Fair Wear Foundation for their outstanding programme to ensure fair working conditions in their production factories. Bluesign Certification: ergobag's manufacturing process is certified by bluesign to ensure a clean and pollutant-free production. PFC-free: ergobag does not use per-and polyflurinated chemicals for our water-repellent impregnation of the fabric. Recycling: ergobag is made of textiles produced using recycled PET bottles for the last 10 years. How to pack and adjust your ergobag Product details Volume: 20 litres Size: 28 x 40 x 25 cm (width x height x depth) Weight: 1000g Volume: 20 litres Material Main fabric: 100% polyester Lining: 100% polyester Made of 19,5 recycled PET bottles (0.5 l) Water and dirt-resistant Care instructions: do not wash, do not bleach, do not tumble dry, do not iron, do not dry clean Manufacturer's Warranty ergobag comes with a two-year international warranty. Get an additional one year warranty by sharing with ergokid a picture of your new bag on social media: