Is Barnes being paid by this wear-able towel company to wear this as an endorsement?

I can see the idea. You always see these players with a towel thrown on their head. So some entrepreneur creates a towel purposefully made for that: a little more contoured, a string to hold it on. A cool design on the outside. And then you need to create knowledge of your product, so you pay an NBA player to wear it in a press conference. And of course you can’t get or can’t afford Curry or Durant, so you get Scottie Barnes.