Lara Bingle recently celebrated National Nude Day by posting some sexy topless snaps of her on instagram.

The 27-year-old Australian model also shared the photos of Elyse Taylor, her Aussie model friend and supermodel Lara Stone, the Daily Telegraph reported. According to the National Day Calender, National Nude Day is a way to keep cool on a hot, sticky summer day and the Nudist groups around the world celebrate this holiday and take it quite seriously.

The Calender added that the nudists are not pervert despite their desire to go "au natural" might be offensive to the conservative population.