Oops, it doesn't look like 'Run In Spandex day' is a national day..

Other days

First Love Day

Hiv Awareness Day

Raise Awerness Of Zeus Day

Hoodie Day

Get Funky Day

Prescription Drug Take Back Day

My Little Pony Day

Chocolate Milkshake Day

Appreciate Yaself A Lil Extra Day

Lost Sock Memorial Day