This is a great product. The only concern is that it comes in Medium and Large but there is little to suggest which size will be appropriate and unless you previously owned one, you would not know which size to purchase. The Medium is really quite small.

It fits great.  My son uses it during swim meets.  It stays secure and fits snug.

I  am an adult male.  I have a small head but ordered the medium size.   It is almost impossible to put this on my head.

well the cap was great, perfect on flip turns, great on under water stream lines, felt awsome on starts but i aways recomend on getting the large if your in high school or oler because i got the med. and lets just say its little