Another year, a new reason to fill up your swim drawer, right? The best thing about collecting bikinis and one-pieces is you never know when a tropical getaway might come up during the Winter months. And even if it doesn't, you'll have a wide collection of suits to rock all Summer long come June. But we aren't just here to tell you to shop, we're here to tell you what to shop. We uncovered the trends that will have the longest shelf life (that's more than one season long!). Scroll to digest them all, or jump ahead to your favorite one, as seen on some fashion-forward celebs and models.