Great cap but I found it was too large.  I do have a petite head, however (21.5" around).  I went with a child/petite size bubble cap from All Star Sales in Canada, and the fit was perfect for me.  The child size flowered caps fit better, too.

I swim every day, year around for exercise. I like chin-strapped swim caps better than those thin latex ones because they are easier to put on the head and last much longer. I have been wearing these bubble swim caps for over 30 years, with various colors that compliment my swim suits. I am looking for red and yellow (primary colors, not dark pink or beige) but have not found ones lately. I have some red and yellow ones left over from those I bought decades ago. Can you make these with more choices of colors?

When I thought about why I did not like to swim the key reason was the damage that could be caused by chlorine in my hair.     I use two caps and this one fits over one that I use to stretch over my big head and hold my hair and this one serves to keep the water out.
it works

I have a large head and this cap fits, is easy to get on and stays on without the chin strap.  My hair still gets wet but not saturated.

The cap seems to be sturdy and well made at a good price.  However, it is very large for a small woman.  It should come in smaller sizes also.

Generally what I am looking for and works fine...just a triffle small for people like me who have big heads...but over time they stretch out a bit so I am hopeful.