One's a "genius freak" and the other's a cool cat, and they'd both be happy sailing an eskie down a gutter on a stormy day.
Meet Nathan Outteridge and Iain Jensen: newly crowned Olympic champions and sailing's answer to Batman and Robin.
Nathan's the laid back bloke who's spent his Olympics freewheeling around the boat park on a little fold-up scooter, wearing a snorkel and goggles in his boat and generally laughing his way through the Games.
Jensen's the quiet genius, according to their coach Emmett Lazich.
The world champions met when they were kids and it's their love of sailing that's got them to the top.
"They wouldn't care if they were sailing an eskie down a gutter on a stormy day," Lazich said.
"Nathan's very easy to coach because he genuinely loves sailing.
"I've never met anyone in my life who's so passionate about getting out there in his boat."
Photo Gallery: Australia's Olympic Medallists
But life's not always been plain sailing for 26-year-old Outteridge.
In 2005 he broke his back and spent a month in hospital after falling asleep at the wheel and crashing his car into a tree.
At the Beijing Olympics he capsized just 100 metres from the finish line and missed out on a gold medal in heartbreaking style.
Australian sailing team boss Peter Conde says the 2005 accident, which happened as Outteridge drove to the Sail Melbourne regatta, has played a key role in the sailor's life.
"I've heard him say that it made him reflect on life and just how much he valued sailing as part of his life and what he wanted to achieve," Conde told AAP.
"It was an unfortunate incident but it certainly led to him really becoming focussed on becoming great at what he does.
"And he's a very special sailor."
Outteridge steers the Australian 49er skiff, which is often described as the Formula One of elite sailing.
Jensen, 24, known universally by his nickname `Goobs', is in charge of the sails and the ropes.
But his value at this Games has been so much more than simply keeping the boat moving quickly.
When Outteridge and Jensen capsized early in the Olympic regatta, it was Jensen who yanked down the sails before the mast hit the water - allowing Jensen to jump back onboard quickly.
His actions were crucial, allowing the pair to finish the race fourth rather than slumping to the back of the fleet.
A day later, Outteridge and Jensen hit a wave during another race, sending Outteridge almost flying into the water.
It was Jensen who saved the day again, grabbing his mate and preventing him going overboard.
"Gooby's incredibly sharp," Lazich added.
"When we do team IQ tests he gets ridiculously high scores.
"He's a genius, quite literally.
"He's a pretty quiet guy in normal life, he doesn't say much and he operates like that within our group.
"But every now and then he just comes up with something and he'll say something and Nathan and I pause and we think about and say `damn, we'd never would have thought about that'.
"He's a bit of a freak but in everyday life he's quiet."
Outteridge is now off to compete in the Americas Cup and the pair should campaign for Rio.
"If you ask Nath about future Olympics I've heard him say: `Well I'll do more but not without Iain'," Conde added.
Whatever happens, Batman and Robin will be sticking together.