This is by far the most exciting of the new spring/ summer 2019 swimwear trends for a lot of people. The look of the long sleeves seems to be universally flattering, and the short sleeves have a sporty look to them as well. While there are a few rash-guard-style options that certainly fit into the sporty style trend, there are quite a few others that are obviously just a really cool addition to the swimsuits style.