Celebs Wearin' Calvin Klein Happy Underwear Day!

8/5/2018 12:01 AM PDT

Celebs Wearin' Calvin Klein -- Happy Underwear Day!

In honor of national underwear day, we're celebrating with some designer drawers!

These steamy stars have stripped down to their skivvies to shake up this under-appreciated holiday ... Flip through our gallery of celebrities wearing Calvin Klein and feel festive with the cotton candids!