1. Simple design, concealed and easy to carry, suitable for use in outdoor and daily life 2. High-density impermeable fabric, travel rain does not soak the contents of the bag 3. Seamless design, waterproof and explosion-proof 4. Zipper pulling close and smooth, no jamming 5. Quick release buckle design, more convenient to use 6. Structure: the main bag + fast-take convenient front pocket + internal patch pocket + rear width hidden pocket 7. Material: Oxford cloth 8. Bag shape: horizontal section square type 9. Can be loaded down 7.9-inch tablet computer 10. Size: 23 x 17 x 8cm 11. Weight: 0.34 kg