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, 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.

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.