Dancing in Your Underwear Day is a Pastafarian Holy Day which occurred on .
When it comes to understanding National Underwear Day, it is not all about lace and leather. Cotton, Spandex, neoprene, polyester, velvet and so many more materials are used in many different types and styles of undergarments. From Bras to panties, corsets to boxers, one can always find some sort of garment to go between their skin and the outer clothing layer. 
Pastafarian holidays are observed by adherents of Pastafarianism, the world’s fastest-growing carbohydrate-based religion.