The son of the late Crocodile Hunter, who stripped to his skivvies for a new Bonds underwear campaign, says his dad would have a laugh at the 'Made for Down Under ads.

Robert Irwin, son of late 'Crocodile Hunter' Steve Irwin, is stripping down to his underwear for a new clothing campaign. At 21, he isn't a kid anymore.

Robert Irwin, the 21-year-old son of the late Steve Irwin, made heads turn when he was recently revealed as the brand icon of an Australian underwear company, Bonds.