Bought the Tyr dome cap, one size fits all, very comfortable. Competitive swimmer, I double capped and the Tyr worked great. Convers ears.

Awesome cap. I have bought 3 in the past 6 yrs. (2 for my son / 1 for me) Fits snug on purpose. Will not wrinkle-up like other caps. Very fast and streamline. High speed / Low drag. Made for competition. Will keep buying them as long and Speedo keep making them!

Got my 14 year-old son a medium and it''s a little too small.  He likes to use double caps in meets, but he won''t be able to do that with this cap.

This was a good product, but it was way too small.

Go 1 size up, runs small

This cap is too tight for me.  I have shoulder length hair and I can just barely get it all under the cap.  I thought that a medium would be OK... guess not.  Nothing is wrong with the construction of it, I just need another size.