As an older male who has less than a full head of hair, the traditional swim cap has been merely a requirement of races or a way to be seen by other while in open water. The Hammer Head has changed my view of just what a swim cap can be. The impact protection provided by the honeycomb section was just the start for me. I now swim every stroke with my Hammer Head Cap. It provides me with a smooth streamline surface on my head so I know that when I am pushing those hard sets, nothing is slowing me down. The cap sits on my head perfectly and never moves, I can not say the same for other swim caps which I have had come off mid-race or mid-set. I have to say my new favorite feature is the warmth retention the cap offers. Neoprene caps have never been a comfortable option for cold water swimming. They are clunky and never fit right. Now, my head stays comfortable at all times, never too hot or too cold. What can I say, I am a fan of the Hammer Head.