Star Bikini Tips By InStyle Editors InStyle Editors Instagram Twitter InStyle's mantra is "Everybody's in," and that means anyone who finds their way to our stories should find themselves reflected in them. We prioritize bringing the right writer to every story and sometimes collaborate as a team to ensure we're including points of view across race, gender expression, body size, skin and hair type, and more. Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. For more about our team, click here. InStyle's editorial guidelines Updated on May 20, 2015 Pin Share Tweet Email Photo: Charles Eshelman/FilmMagic, Courtesy Star Bikini Tips 01 of 08 Star Bikini Tips PA PHOTOS /LANDOV, Courtesy Whether you need a suit that will stay on in the surf or just a cute cover-up, depend on the expert advice of beach-loving stars like Cameron Diaz, Rihanna, Heidi Klum and more. Click on for InStyle's best celebrity bikini tips. 02 of 08 Cameron Diaz PA PHOTOS /LANDOV, Courtesy "I love surfing in Pualani Hawai'i bikinis," Cameron Diaz told InStyle. "They're tiny, so you get a really good tan, but they stay on." As for footwear? "Always Havaianas. Preferably in white." String bikini top in Happiness, Pualani Hawai'i, $69; 03 of 08 Rihanna Jun Sato/WireImage, Courtesy "I like wearing a bikini with a cover-up that's loose, not too long and a little bit sheer," Rihanna told us. Foil cover-up, $50, Topshop; topshop.com.Snow leopard-print bikini, $207, We Are Handsome; shoplesnouvelles.com. 04 of 08 Rachel Zoe PNP/WENN.com, Courtesy "Hands down, my favorite suit is a Missoni," super-stylist Rachel Zoe told InStyle. "It looks almost too sexy to wear on the beach." String bikini, $365, Missoni; mytheresa.com. 05 of 08 Mila Kunis INFevents.com, Courtesy "At night I love just throwing on a dress over the bathing suit I've been wearing all day," advised Mila Kunis of her summertime look. Cold-shoulder dress, American Eagle, $39.50; 06 of 08 Heidi Klum Jeff Kravitz/FilmMagic , Courtesy "You tend to think the more skin the better when it comes to swimsuits," Heidi Klum told InStyle. "But all it takes is one look at a hot maillot to change your mind." That said, a "twist bandeau is great for cleavage." One-piece, Miu Miu, $215; 07 of 08 Kristen Bell Splash News, Courtesy "When it comes to bathing suits, I have several by Lauren Moffatt," Kristen Bell told us. "J.Crew also has a good selection, with lots of different shapes, from string bikinis to boy-cut, that you can mix and match." Ruched top, J.Crew, $44; 08 of 08 Cassie Charles Eshelman/FilmMagic, Courtesy "Hot pink is edgy, plus it makes a good tan seem even better," said Cassie. Bikini, Michael Kors, $235; net-a-porter.com. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit