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.

Crikey! The son of conservationist Steve Irwin, Robert, 21, has just posed practically naked in a reptile themed underwear shoot, and it's safe to say the internet is going to need a minute (hi, it's us, we're the internet).

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