There are four differences between first generation and second generation

1. Different colors;

2. The first generation of front LOGO is made of cloth, while the second generation is made of soft glue;

3. Both the first generation and the second generation have a small removable storage bag. When the zipper of the first generation is opened, there is only one pocket.

4. There is an open pocket at the bottom of the small storage bag (which can store socks, pants, etc. ~).