The personal trainer brothers of Jourdan Dunn and Rosie Huntington-Whiteley share the workout that burns up to 600 calories a class

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Many supermodels swear by boxing to sculpt their lean physiques.

We visited a boxfit studio in London to meet trainers Antoine Dunn and Toby Huntington-Whiteley, brothers to former Victoria's Secret models Jourdan Dunn and Rosie Huntington-Whiteley.

They talked to Business Insider about the benefits of boxing, their training routines, and the things they won't eat.

Antoine "A Train" Dunn and Toby Huntington-Whiteley share a couple of things in common.

In addition to working together as personal trainers at London's trendy boxfit studio, Kobox, they are both younger brothers to British models — Jourdan Dunn and Rosie Huntington-Whiteley.See the rest of the story at Business InsiderNOW WATCH: What would happen if humans tried to land on JupiterSee Also:How cats see the world compared to humansThe 22 best places to live in America if you want to make a lot of moneyA physiologist says working out in the evening has some surprising benefits over the morning and she put it to the testSEE ALSO: Meet Roger Frampton, the international model and personal trainer who chooses stretches over weights and 'can teach you to move like a 3-year-old'