Ashley Graham poses in a purple string bikini for a campaign for SwimsuitsForAll. The collection’s string bikinis range in sizes 10 to 24, and Ashley was the perfect spokesmodel. She looked gorgeous in the two piece as she posed on a boat to show it off.

Although string bikinis may seem simple, this makes them the ideal swimwear for summer. Whether you’re headed to the beach, the pool, or out to catch some rays, you can’t go wrong with a string bikini. Wear a matching set or mix and match the top and bottom for the perfect summer look. Several celebrities besides Ashley have also shown off the string bikini trend over the years, and we’ve rounded up some of the hottest looks from them.

Mary J. Keep scrolling through the gallery to see more photos of celebrities wearing string bikini bathing suits, from Blige to Zoe Kravitz and more.