Difference between Sportswear and Activewear

What is the difference between Sportswear and Activewear?

Sportswear as a noun is casual clothing that is comfortable to wear when exercising or partaking in sport; activewear. while Activewear as a noun is casual clothing that is comfortable to wear when exercising or partaking in sport; sportswear

We hope you now know whether to use Sportswear or Activewear in your sentence.