Nothing is worse than swimming in the ocean and a big wave hits you and well, you just gave all of the awkward teenage boys in the vicinity a free show. Ugh. From experience no designer seems to protect from such horrifying experiences.
That would be why you buy Tyr swimwear. The stuff doesn't budge. It sucks you in so you suddenly have a magnificent shape. It comes in reasonably fashionable patterns--the one pictured is cool looking and also creates a nice optical illusion that you are much thinner than you actually are. And, it lasts all summer unless you swim as much as a high school water polo player. I know, it isn't the most "cool" thing ever to buy, but you will seriously thank yourself when you go to the beach. Seriously.
Picture from zappos.com