The colors and materials are different.

1. Different colors. 530gs adds a little red edge to make it more attractive.

2. The materials are different. 530sg is made of foamed polyester, which disperses impact force and reduces the impact of the rebound on the legs and body from the sole. The material is also better. NewBalance is a company founded in 1906 that specializes in the development and sales of sports shoes. NB is the abbreviation of NewBalance Company and the registered trademark pattern of NewBalance Company.