These high quality Tandem Off-Road hats are guaranteed to hat. They fit on your head unless you have an unusually large or small head. They are adjustable but only by so much. They have a visor to keep the sun out of your eyes, which is pretty neat. Also they have a mesh for the air to flow through. If you are ugly, you can put this hat on and you will still be ugly but at least you will have a cool hat.