I originally bought men's version for my husband to wear to work, he's a CAT mechanic and I was afraid he would get his ring caught or worse (he works with high voltage electricity). I decided to get a few for myself. Instead of wearing my wearing ring snorkeling, I wore one of these. I feel naked without any rings and I was able to relax and not worry about loosing an expensive piece of jewelry.
These are also great for sports, especially basebal... for all of those that have bent rings while up to bat. They don't look expensive and won't pass for a "real" wedding ring but they do the job and serve their purpose.