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Gigi Hadidhas walked her fair share of runways wearing next-to-nothing.

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Taylor Hill/Getty Images

But the 22-year-old model recently told SELF that she feels most sexy (and comfortable!)

in a pair of high-waisted leggings.

You have to nourish all parts of yourself.

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check that you give attention to everything.

Its not just [working out].

Turns out her trainer and owner ofGotham Gym, Rob Piela, is on the same page.

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When Hadids home in New York City, she spends a lot of time training with Piela.

But when shes not?

Pielas still there to motivate and support her.

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But shes a great friend of mine.

We FaceTime when shes on the road.

The motivation and support, no matter where she may be, is critical.

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We asked Piela about a typical workout that Hadid will do when theyre sweating together.

Here, he shares alower-body workoutwith SELF that will build strength and get your heart rate up.

Gigi loves boxing, so we use it in a lot of her workouts, he tells SELF.

If boxing isnt your thing, it’s possible for you to swap it out for another cardio activity.

Ive always likedjump ropeits great for legsor running if [you prefer].

You just want to keep your heart rate up the entire time.