Revision to my earlier review. Sweat caps I have were a different style. But great. They have lasted over 15 years. The caps I ordered this time were the Beanies. They do run big. I wear a size 7 1/4 fitted ball cap and I shave my head.

Too big

In the cool months the Sweatvac helps keep my head warm, and adds a little cushioning between my skin and the helmet. The real benefit is in the warm and hot months, when I can wet the Sweatvac and let the airflow in my helmet bring the temperature of my head down. Cooling my head helps me think more clearly, makes me more alert, and makes me want to ride farther.

Skull Cap

Excellent fit and keeps the sweat dried up.