"We needed fearless spokespeople to show just how laid back you feel when you’re wearing Bonds undies," Tanya Deans, ...

Robert Irwin stepped out of his comfort zone in order to promote animal conservation. The 21-year-old zookeeper posed shirtless for a Bonds underwear ad.

Robert Irwin, son of late 'Crocodile Hunter' Steve Irwin, is stripping down to his underwear for a new clothing campaign. At ...

The 21-year-old son of late “Crocodile Hunter” star Steve Irwin went shirtless for the photo shoot, baring his abs in nothing but variously colored boxers.

The 21-year-old son of iconic “Crocodile Hunter” Steve Irwin stripped down to his skivvies during a recent photoshoot for Australian underwear brand Bonds.

Irwin, the 21-year-old son of late "Crocodile Hunter” Steve Irwin, is the star of a new photo campaign for the Australian underwear company Bonds.

The son of everyone's favorite Crocodile Hunter is all grown up. Robert Irwin, the son of late Steve Irwin left little to the ...

The son of the late Steve Irwin, Crocodile Hunter, opens up about his relationship status, posing in a cheeky new underwear campaign for Bonds and more in an exclusive sit-down with PEOPLE.

Robert Irwin’s risqué new photo shoot for underwear brand, Bonds, has left people seriously distracted by one small detail.

Robert Irwin, the son of the late Crocodile Hunter, Steve Irwin, has recently made headlines for a surprising new role in an underwear campaign. In a bold move that showcases his personality, Robert ...