The Bakprotek® Backpack was scientifically designed with emphasis on ergonomics thereby optimizing weight loading to minimize spinal pressure. Lumbopelvic Support System This horizontal soft padding at the lower back is a special support system that reduces back stress and lightens heavy loads by transmitting weight from the shoulders to the hips. Sternal and Waist Straps The sternal and waist strap serves as a means of stabilisation to bring the load as close as possible to the child’s axial spine (midback， lower back and pelvis) centre of gravity. This is to minimise the swaying of the schoolbag by reducing its direct impact to the lower back spine. Structurally Reinforced Base This prevents unnecessary sagging when filled with books. Soft Back-padded “ Design Pattern This offers gentle and sufficient support to the back muscle group and allows better ventilation and cooling to the back.