https://www.youtube.com/watch?v=LM9FpD-Kz40
"Lightweight Version": + upgrade + 8 times expansion capacity +
"Heavy version": + upgrade + 10 times expansion capacity +
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+The bag is made of water-repellent material, which is light and easy to carry
+ Three-stage expansion capacity
+ The bag cover can be detached to become a "beverage bag"
+ You can add a color-changing bag cover to change the appearance
"Provide after-sales maintenance services for commodities"
Material: Recycled PET bottle yarn_water repellent
Bearing capacity: about 6KG
Test: The product has been tested for 200 days and the feedback from the sponsors has been corrected to strengthen the problem points
