Large-Capacity School Backpack For StudentsFEATURES SCIENTIFIC SPINE PROTECTION: The backpack features a multi point pressure reduction design. The S type shoulder straps, balance chest buckle, and high elastic back pad work together to cushion shocks and distribute pressure evenly. The honeycomb mesh on the back enhances ventilation, and the three dimensional pressed breathable back pad quickly dissipates heat, ensuring the child's spine is well protected during long time wear. LARGE CAPACITY