For a guy who spends his days in the literal fast lane, Lewis Hamilton speaks in a calm, collected manner. Then again, a measured temperament is probably required when your day job requires you to sit behind the wheel of a Formula 1 car hurtling through a track and making hairpin turns at upwards of 150 miles-per-hour. It's a calling that also requires drivers to be in top physical shape, something Hamilton's never not working towards. Despite the fact that his sport requires him to be seated for hours on end, the 32 year-old Brit is dead serious about his fitness routine, one he's been dedicated to since the age of 13. "People who watch F1 on TV don't realize how physical it is. I just did a couple hours driving today, and lost 7-8 pounds," he says. "There's a lot of g-force, so your arms, your shoulders, your neck, your quads are all under stress. Plus the racing suit is sweltering. I also have to keep my weight down, otherwise I'd have the best beach body ever."

According to Hamilton, just two pounds of extra weight can cause him to lose two seconds in a race, and with so much money on the line it's crucial he stay in shape. That commitment is just one of the reasons Puma came calling to sign up the pro athlete as their latest brand ambassador (the others: he's known all over the globe and looks like a male model) joining a roster of big name athletes and entertainers that already includes Rihanna, Big Sean, The Weeknd., and Usain Bolt. His first gig is as the face of the brand's new 24/7 Performance Proposition line of gear made for working out or just going out (we'd call it athleisure, but this stuff is better than that). It's fitting for a guy who will tell you staying in shape and being comfortable are two priorities never far from his mind.

"I love the new Ignite Flash trainers [which are dropping in 2018]," he says of the line's soon-to-be-released sneakers. "Cardio is everything for me because I can't put on a lot of bulk, so I do a lot of running, and I love how light the Ignite trainers are." And for the times when he's not required to break a sweat, Hamilton is a fan of another Puma mainstay. "I also travel a lot, so I wear a lot of track suits and I love Puma's track suits," he says.

When he's not sporting head-to-toe Puma (which you expect to see a lot more of in the coming months), Hamilton has also earned a reputation as one of the most fashion conscience men in auto racing—or on the planet, really. He's proved time and again that he's not afraid of a style swerve (outcome be damned) and can be counted as one of the only dudes on the planet who actually looks good in a mesh tank top. To get more insight into Hamilton's style tastes, we hit him up with our burning style questions:

GQ: What's one trend you most regret embracing?

Lewis Hamilton: Baggy jeans.

What's the first big style splurge you bought after you made it big?

It was probably a jacket because I was living in England and it was bloody cold. It was definitely a jacket I couldn't ever have afforded before.

What's the last thing you bought online?

It's kind of embarrassing. It was a backpack—we just went to go climb Mount Machu Picchu—and I needed a backpack to put a baby in. I had to carry my godson in it.