08/25/2015 10:53 EDT | Updated 08/25/2015 10:59 EDT

Pippa Middleton's Red Hot Bikini Is Giving Us Serious Swimsuit Envy


Pippa Middleton's fashion sense isn't limited to the streets -- the younger sister to the Duchess of Cambridge has some pretty killer beach style as well.

The 31-year-old was spotted enjoying a family vacation in St. Barts wearing a red ViX bikini that showcased her toned physique. The halter top featured gathering at the cups and 24 karat gold-plated adjustable sliding tube detail, which was also on the matching bottoms.

The brunette beauty has been vocal about working out to stay fit in the past.

"I know that if I fit in at least three, ideally five, sessions of exercise a week, be it a 30-minute run, an hour’s walk or a good game of tennis, it boosts my mood and energy, and helps me sleep and digest better. So I make it a priority, whatever the weather or my work schedule," she wrote in a column for Waitrose Weekend magazine in 2014.

Looks like it's paying off! Watch the video above to check out Pippa's red hot bikini.

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