Party In Your Pants! Let the festivities begin. To celebrate Modus Vivendi's 30th birthday, the iconic underwear label is pulling out all the stops. This collection shows off exactly what this designer does best: Briefs, jockstraps, tanks, tango briefs, and shorts that are daring, decadent, and delicious. In a word? These are totally hardcore. We don't expect 'em to last for long, so grab your favorites now!