i used to swim on a team and i still get in the water from time to time, and i personally dont tape to swim often. i find it doesnt stick that well for lap swimming, the combination of chlorine or salt water and repetitive movements pulling at the tape tends to erode the adhesive within 10-15 minutes. if youre doing rec then it works fine, but id reccommend a rashguard to go over the tape if you do laps in case it starts rolling and peels off