When you want to explore the freedom going bra less offers you! 5. But when you can finally remove it at the end of they day, it's utter bliss! 3. When your boobies have been in the 'Bra Jail' all day, it's not a happy thought. Here are 10 reasons why it's awesome to celebrate this day - 1. After all, what's a better way to celebrate your boobs than giving them a day full of freedom? So ladies, free your precious breasts for a full 24 hours and bask in the glorious comfort! October 13th is celebrated worldwide as the No Bra Day.