Us Weekly has affiliate partnerships. We receive compensation when you click on a link and make a purchase. Learn more! We’re used to seeing Meghan Markle in linen shirts and tailored trousers, but let Us tell you, she rocks sexy one-piece swimsuits just as well. It’s all about the style, and Markle may have found the most flattering, timeless swimwear of all. Somehow, her slimming look is only $38! In an Instagram post, Markle gazed at her family playing in the ocean while wearing a low-back one-piece and sporty sneakers. We couldn’t see the front, but we didn’t need to because the low-back detail quickly stole our hearts. This Amazon…