Oops, it doesn't look like 'open trainers for such an awesome day' is a national day..

Other days

Polyamory Day

Tell Ur Crush You Like Them Day

Aloxolt Day

African Immigrant And Refugee Hiv And Hep Awareness Day

Kale Day

Get Funky Day

Hoodie Day

Mean Girls Day

Offer Day

Tell A Fairytale Day