Yes, there is diaper that is designed for swim. I will bring my little boy to Singapore next week and we are planning to take him to swim there. Bought baby swimsuit (zip up version and cover most of his body) and also prepare swimming diaper for him to wear. Very look forward to it as it will be his first overseas trip and also his first swim. He loves water so much when he is in bathing so I hope he will enjoys it too.