Fashion Clothing Star Bikinis By InStyle Editors InStyle Editors Facebook Instagram Twitter 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. InStyle's editorial guidelines Updated on May 20, 2015 @ 05:09PM Pin Share Tweet Email Trending Videos Photo: Courtesy of net-a-porter.com Star Bikinis 01 of 22 Gisele Bündchen Eliot Press/Bauer-Griffin The athletic supermodel wears a double-strap string bikini on a windsurfing outing. Try the Metallic Square two-piece from Lisa Curran for look-alike appeal. BUY ONLINE NOW$160; at shopbop.com 02 of 22 Jessica Alba O'Neill/White/INF Goff Alba flaunts her famous form in a two-toned suit from Vitamin A. Score the cute combination in a magenta bandeau top and light copper bikini bottoms from American Apparel. BUY ONLINE NOWTop, $25; at americanapparel.netBottoms, $25; at americanapparel.net For more star bikinis, check out BeyoncÃ©'s cover shoot for the Sports Illustrated Swimsuit Issue. 03 of 22 Cameron Diaz Andrew Shawaf/Pacificcoast Diaz walks the beach in a delicious Lollipop suit from Le Doux. Call 888-284-2420 for stores or improvise her look with the Buttercup top in emerald green from L*Space and Bright Stripe bottoms from Salinas. BUY ONLINE NOWTop, $61; at instyleswimwear.comBottoms, $60; at urbanoutfitters.com 04 of 22 Jessica Biel Thornton/Green/INF Goff Biel highlights her athletic curves in a playful brown-and-pink argyle suit by Kerry Cushman; skirted bottoms provide extra coverage during beach fun. BUY JESSICA'S BIKINI NOW$186; at kushcush.com 05 of 22 Kate Hudson FlyNet Hudson emerges from the ocean in a simple but classic string bikini. Look sexy on the beach in similar separates from Cosabella Mare. BUY ONLINE NOWTop, $60; at chicmystique.comBottoms, $60; at chicmystique.com 06 of 22 Keira Knightley FlyNet Knightley shows off her toned abs in a candy-striped bandeau suit. Get your bikini wardrobe in good shape with the Heart Breaker suit in red-and-white stripes from Wet Seal. BUY ONLINE NOWTop, $19.50; at wetseal.comBottoms, $19.50; at wetseal.com 07 of 22 Lindsay Lohan Ginsburg/Spaly/Splash Lindsay's bright blue bikini plays up her copper locks beautifully. Pick up the Essential triangle top and string-bikini bottoms from Gap in marine blue to get the young starlet's look. BUY ONLINE NOWTop, $20; at gap.comBottoms, $26.50; at gap.com 08 of 22 Evangeline Lilly Will Binns/Andy Johnstone/Pacificcoast The Lost star makes waves in bright floral separates. Get similar surfer-girl style in a beaded bikini from Op. BUY ONLINE NOW$86; at victoriassecret.com 09 of 22 Sienna Miller Bauer-Griffin The British beauty plays it cool in the Torey suit from Vix. Chain detailing gives the nautical-inspired bikini some extra edge. BUY SIENNA'S BIKINI NOW$122; at vixswimwear.com 10 of 22 Vanessa Minnillo Ginsburg/Spaly/Splash Minnillo shows off her incredible figure in a black suit with sexy accent rings. Play poolside peekaboo in the similar Kate Ring bikini from So De Mel. BUY ONLINE NOW$150; at kateboutique.com 11 of 22 Pink Kadena/Bauer-Griffin Pink pairs her skull-printed triangle top with plain black bottoms for a little-yes, just a little-conservative touch. Get her style with a Rock n' Roll High Skull bikini top from Holmes Swimwear and hipster bottoms in black from L*Space. BUY ONLINE NOWTop, $96 (sold as set); at susanholmes.netBottoms, $59; at everythingbutwater.com 12 of 22 Christina Ricci Bret Thompsett/Pacificcoast Ricci soaks up the sun with a girl's true best friends-a dog and a bright bikini. Try the look with a ruched-front bandeau top and solid bottoms in cinnabar from J. Crew. BUY ONLINE NOWTop, $36; at jcrew.comBottoms, $34; at jcrew.com 13 of 22 Nicole Richie Pacificcoast Richie piles on the accessories to add some color to a classic black two-piece. Buy a string bikini from Old Navy and you too can afford to splurge on some beach-chic baubles. BUY ONLINE NOWTop, $16.50; at oldnavy.comBottoms, $16.50; at oldnavy.com 14 of 22 Rihanna Splash The songstress dresses up for a day at the beach in a chocolate-brown suit with jeweled detail. No need for an S.O.S.-the La Dolce Vita suit from Asha Couture will give you similar sparkle. BUY ONLINE NOW$132; at swimwearboutique.com 15 of 22 Molly Sims Bret Thompsett/Pacificcoast Sims did Sports Illustrated proud in her colorful string suit. Get the former swimsuit-model's look with the Eye of the Tiger print top and keyhole bottoms from Love Surf Love. BUY ONLINE NOW$86 at swimwearboutique.com 16 of 22 Charlize Theron Madison/X17 Theron is the apple of her dogs' eyes in a striped string bikini. Fetch the Mackenzie suit in Blue Stripe from Abercrombie & Fitch for a Charlize-like look. BUY ONLINE NOWTop, $34.50; at abercrombie.comBottoms, $34.50; at abercrombie.com 17 of 22 Ashlee Simpson Andy Johnstone/Pacificcoast Simpson wades in the water in a bright rugby-striped two-piece from Rusty. Get a similar effect with the Tennis Stripe halter top and tie bottoms from Juicy Couture. BUY ONLINE NOW$140; at bloomingdales.com 18 of 22 Drew Barrymore Pacificcoast Barrymore wears her birthday suit-her Lisa Curran bandeau bikini birthday suit, that is. She bought the suit in two colors for a celebratory beachside bash. BUY DREW'S BIKINI NOW$140; at shopbop.com 19 of 22 PenÃ©lope Cruz Fame The actress sports a floral-print Diane von Furstenberg suit while bodyboarding in the Caribbean. Get this actress-tested bikini for your next day on the waves. BUY PENELOPE'S BIKINI NOWTop, $80; at nordstrom.comBottoms, $80; at nordstrom.com 20 of 22 Denise Richards Flynet The actress bares her famous bikini bod in a wine-colored two-piece from Vix. Get a similar look with the striped Neverland suit from Pompei Beach. BUY ONLINE NOW$72; at instyleswimwear.com 21 of 22 Kirsten Dunst Starsurf/Splash Dunst keeps her cool in a black bandeau bikini topped with bright white shades from Luella. Get a similar look with separates from the Victoria's Secret Beach Sexy collection and sunnies from Fred Flare. BUY ONLINE NOWTop, $15; at victoriassecret.comBottoms, $14; at victoriassecret.comSunglasses, $9; at fredflare.com 22 of 22 More Swimsuit Sites Courtesy of net-a-porter.com Vivre.com Try this stylish site for sexy suits from Roberto Cavalli and more. Though the selection isn't huge, the unique suits are worth a look. Victoriassecret.comIf you're a fan of their bras, you'll find the same styles and support in their bikini and tankini tops. Bottoms and tops are sold separately, so you can find the best fit for your figure. Net-a-porter.comTake your designer fetish to the beach! This site carries hot brands like Diane von Furstenberg, DampG, Missoni and Pucci in a variety of styles and splashy prints. At left: DampG Dolce amp Gabbana red-and-white striped bikini, $215; at net-a-porter.com.