I normally wear a men's medium and ordered an extra large size. It is still basically almost skin tight, not super easy to get on and off. However, being tight makes swimming easier. The extra large size makes the length just about right to cover my wrists, etc. I definitely recommend going 2 sizes up. I imagine in a couple of years, more people will be wearing these, but for now I'll have to put up with being safe but a little self-conscious! 4 stars