# How do I size for swim fins?

> Most fins sizes are offered in shoe size ranges Simply find the range that covers your US shoe size If you find yourself between two fin sizes we recommend s

Source: https://support.swimoutlet.com/en_us/how-do-i-size-for-swim-fins-r11JHfGS6

Last updated: 2025-08-13T11:09:36.229Z

Most fins sizes are offered in shoe size ranges. Simply find the range that covers your US shoe size by utilizing the sizing chart. If you find yourself between two fin sizes, we recommend sizing up and using a pair of [fin socks](http://www.swimoutlet.com/swim-fin-accessories-c9652/) to gain a snug fit (if needed). Always double-check the manufacturer [sizing](https://support.swimoutlet.com/en_us/rk2hVGGHp) chart if you are unsure which size to order.