It's better than the standard Speedo cap in that it stays on my head without me having to pin it.  I was hoping, however, for a cap that might actually keep my hair dry-- NO such luck.  My hair is as wet as it would be if I swam with no cap at all.  It just keeps the hair out of my eyes and the pool drain, nothing more.

my wife finds that this cap is best she has found  for keeping her hair dry in the pool

I LOVE IT

The chin strap did not resnap the first time I used the product.  Fortunately, I had the brainstorm to try it the other way.  The buckle had been threaded backwards making it not resnap.  I almost returned this product as defective.  ONce I rethreaded the strap it works fine.  The cap itself works well.  It was really frustrating until I figure out what was wrong with it.  NOt sure too many people will do that.

Product Use: For swimming,  1 1/2 hrs twice a week
Great:Usage: Cap does not allow water into it, snug fit but not tight
                         chin strap allows adjustment, very durable

Not so great::  No complaints , very satisfied

Plan to order more when needed.

great fit, love the look but wont keep your hair dry.