Here's the size chart for choosing your new diving fins. The size is primarily based on your regular shoe size (EU).
It's important that the fin fits snugly on your foot without being too tight. If it's too loose, you might experience rubbing, and the power transfer will be less efficient, requiring more effort to swim. If it's too tight, you risk getting cramps in your foot.
The chart also includes information on the fin's total length (measurement A), which is useful to know if you're packing them in a suitcase for vacation.
