Product Description: Name: Children's Space Backpack Schoolbag Weight: Material: Oxford cloth, polyester function 1: Comfortable and breathable without sweating, thickened 3D back cushion for faster heat dissipation 2: Lightweight and non load-bearing, wear-resistant, lightweight fabric, reducing load and protecting the spine 3: High density waterproof fabric for safer travel on rainy days 4: Large capacity open cover design, multi-layer separation, reasonable induction 5: Nightlight anti stripe, safety reflection for night travel