I read the reviews on this cap and decided to give it a try. I have very thick hair and apparently my head is too big! While there might have been enough room for hair, having this cap on was like having a vice on your head. I could not stand it for more than 30 seconds. I know I am not petite, but there are plenty of people with different size heads. I went to return it, but Amazon said "hey you are a good customer, this one is on us!" Apparently they are going to credit me. I am still on the hunt for a proper swim cap that will fit my head.Sorry Speedo,this was an epic fail for me.