UPDATE:  I ended up trying to wear this several more times. After the third time the blackish ring stopped.. maybe it just needed cleaned off, not sure!?  It anyway, very happy with this item now. Ive now worn it for several weeks, including the shower twice and its still in great shape! Glad I gave it another try!

I am pretty disappointed.. based on the reviews I was SO excited to get this in yesterday. Put it on this morning, this evening there is a blackish ring around my ankle. I didn't get my ankle wet or anything abnormal, and was inside almost all day.. pretty bummed!