Nike Experience Day / Interview

I have a Nike Experience Day coming up and I wanted to know if any one has going through this process already and could let me know what it entails.

I have been told to dress "smart casual" and that they are all pretty casual and I should wear what I feel comfortable in. This is new to me as I always dress formal for interviews, so I am pretty stuck on what to wear.

I have also been told not to wear any competitive branding (fair enough) but does that mean I should wear clothing or footwear by Nike?

Any kind of insight would be helpful. Thank you x