I have a small head and have trouble finding hats that fit. My hair is pretty long right now (several inches below shoulders) so I look for hats with a ponytail hole to help keep my hair off my neck. Women-specific hats seem to meet both requirements the best. My favorite running hat is the Brooks for Her pink ribbon hat, which apparently sold out years ago, shortly after I bought it. I bought the Brooks mesh cap because it seemed very similar. In most ways, it is.

The whole hat is a mesh fabric. The mesh in the printed area has smaller holes, so gives slightly less airflow. The hat conforms nicely to my small head. It does adjust with a velcro strap in the back. I put my ponytail through the hole and the cap stays on pretty well, though not quite as well as the Brooks for Her hat. The bill is about three inches wide (from the front to where it touches the cap) and has holes in the inner (cardboard?) part for more airflow. It also has a headband to help catch sweat, though I have to say it isn't the most effective.

The other hat I have is an older Headsweats model which is not mesh. The second time I wore it, my sweaty head stained it yellow. The stains wouldn't wash out and I was appalled by that, as Headsweats are designed exactly for that. That model isn't sold any longer, but after that experience, I stick with mesh hats rather than the polyester fabric the Headsweats is made of.

I would give this five stars if the headband was a bit more effective and if it stayed in place better. I'm not sure what it is about this hat compared to my other one that makes it slide around a bit. If you have a small head and are looking for a cap to help block the sun while you run, this is a good choice.