TheyFit has 95 different sizes but I'm not sure where they top out. I also don't know if this matters to you but I've always had to buy them online because I couldn't find anywhere near me that sold them.

This is going to sound weird but I always carried mine in a mint tin. The tin I could put in my pocket or my bra whichever was easiest. The tin kept them from getting mushed and seemed to keep them from absorbing my body heat.

Hope this helps some