Several of my friends & I use Headsweats year-round ... they have a sweatband sewn in at the bottom & are made out of Coolmax material which helps wick away the sweat. I also have one of their hats for running or after riding ... works really well!

http://www.headsweats.com/productcar...p?idCategory=5
http://www.headsweats.com/fabrics/