The Ergonomic Backpack for Teenagers Satch Pack innovatively combines the core features of high-performance trekking backpacks with practical features required of a school bag. It adopts the principle of optimal load distribution, commonplace in professional hiking backpacks. How to pack and adjust your Satch correctly Ergonomic Design The school backpack sits comfortably tight on the body. The back panel is stabilized by two ergonomic aluminum rails. It is adjustable to the back length of the student. The waist flaps are key to alleviate the strain off the back and to shift the weight to the stronger pelvic area. The chest strap is also adjustable to the height of the student. It helps position the shoulder straps comfortably. Customizable to the individual: the Satch is adjustable for teenagers and adults up to 180 cm in height. Ergonomic Features 1. shoulder straps: anatomically shaped and comfortable 2. aluminum rails: ergonomic, orthopedically-shaped and stabilizing 3. hip belt: redistribute weight to the pelvic area; strong; removable 4. back padding: ergonomically shaped; breathable 5. chest strap: height-adjustable; removable 6. compression side straps: bring the weight closer to the back to reduce gravity pull. Organization Features An outlet for headphones, buckles to compress the weight closer to the back, and a small pocket in the front for stationery. Discover all the useful features of the Satch Pack. 1. Two main compartments2. Stay on top of things – with the Satch Organizer3. Expandable external side pockets4. Front straps to hold a jacket or a jersey5. Reflectors all-around for road safety6. Headphone outlet Product details Size: 30x27x45 cm (W / D / H) Weight: 1100 g Volume: 30 liters 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: