Hailey Bieber in Bathing Suit is All Rainbows

Hailey Bieber is hanging ten! The supermodel wife of Justin Bieber showed off her fabulous figure over the weekend via Instagram. In photos shared to her account, she rocks a tiny swimsuit from Candice Swanepoel's Tropic of C swimwear collection while lounging on the beach and then on a surfboard. (She captioned it with a rainbow emoji.) How does the 25-year-old keep herself so fit? Read on to see 10 of Hailey Bieber's top tips for staying in shape and the photos that prove they work—and to get beach-ready yourself, don't miss these essential 30 Best-Ever Celebrity Bathing Suit Photos!

Hailey works out like it's her job, doing hardcore workouts at The Dogpound, a New York City and Los Angeles based studio offering HIIT and strength training style workouts. In 2021 the gym shared a video taken from one of her sessions, which involved some muscle building exercises like a sled pull, pull-ups, kettlebell squats, plank pikes, landmine squats, and mountain climbers. Read all about it here. 

Hailey's diet is incredibly healthy. "I tried a plant-based diet for two months during quarantine," she recently explained in Harper's Bazaar. "I felt great and I had a lot of energy, but it was not for me. I don't eat a strictly plant-based diet and I do still eat meat. I just don't eat a lot of it. I've picked up more fish, greens, and lentils." She recently added to Byrdie that she eats "a lot of vegetables and fish, not much meat, minimal dairy," adding that she follows this diet not just to look good. "I just feel better when I eat that way." She added to ELLE that she eats three meals a day. "On a regular day, breakfast is usually eggs or oatmeal, some type of healthy protein, or a smoothie. Lunch is usually salad, fish, grilled veggies, or maybe a sandwich. I don't really eat a lot of gluten so I'm trying to be particular. I love a good kale Caesar salad [but with] no croutons. That's usually one thing I leave out. Dinner is usually kind of along the same lines; some sort of vegetable, or pasta, like a gluten-free pasta," she said. 

Hailey added to Harper's Bazaar that pilates help lean out her body. "I used to be a dancer, so I love Pilates because it really elongates and strengthens my muscles. That's probably my favorite workout." 

Hailey also revealed to Harper's Bazaar that she likes one fighting form of fitness. "I also recently started to box for some cardio," said. "I found that remembering the combinations and learning how to move your body in boxing has been good for mental health."

While she eats a primarily healthy diet, Hailey allows herself to cheat on occasion. "A really good cheat day?" she told Byrdie. "A cheeseburger and fries." She added to ELLE that she likes the occasional dessert. "I really like the Magnum bars, that's a great one," she said, adding that she generally tries to avoid sugar. "Sugar's a big one for everyone, I think."

Hailey drinks a lot of water. "I think drinking a lot of water helps. I try to drink, like, a couple bottles throughout the day. I don't know how many glasses that would amount to, but it's important," she told Elle. "Monday plans = hydrate + hydrate +hydrate," she captioned a recent photo of herself downing a glass of ice water in a bikini. 

Hailey might be busy, but she always makes time for outdoor activities. Hailey and Justin spend a lot of time together doing everything from swimming and hiking to paddleboarding. 

Hailey is also a fan of hot workouts. "I've been doing hot Pilates for years now," she told Vogue Australia. "I find that when you do any hot class your muscles are more pliable and you're stretched out easier. You come out dripping in sweat and my face is like a tomato and it's good for your skin! I love it! I'm obsessed and it's addictive."

"We grill a lot of stuff: steak, veggies, corn on the cob, right on the grill," she told Vogue Australia about another healthy eating tactic. "Honestly, the food tastes different at home because it's so fresh."

Hailey and Justin are very religious. "Spirituality and having something to center yourself is important," she told Vogue Australia. "I live my life believing that when I die, I'm going to go to heaven. If I so happen to die and there's nothing at the end of it, at least I lived my life believing in something."