Our Favorite Bouncy Stars to Celebrate National No Bra Day!

Today is the day millions of women unclasp their bras and leave them at home, and it's all for an excellent cause.

October is National Breast Cancer Month, and on the 13th we celebrate National No Bra Day to raise breast cancer awareness and remind women everywhere how important it is to get regularly screened by a doctor.

Stars like Kendall Jenner, Rihanna and Bella Hadid are the pros who usually brave the great outdoors without the proper support, no matter how nippy it is outside.

So take some style tips from the stars and ditch the booby traps today, for the greater good.