I am a biker and recently completed chemo so I was looking for a product to keep the sun off my head but also the sweat out of my eyes. I started the biking season with another product that looked more like a swim cap and it sucked at keeping the sweat out of my eyes. After continuing my search I found Chill-Its and I love it. I completed a 45 mile bike ride the other day and it was 92 degrees out by the time I got home. I had no sweat dripping into my eyes and the top of the Chill-It was still dry. The other thing I love is how well it is made, I feel like I will be wearing this for a long time! I do hand wash it after each ride, but I probably wouldnt have to. It feels great under my helmet and I highly recommend this product!