Some guys sweat and others SWEAT!
In order of effectiveness (my experience only)
- Wicking head band
- Skull cap
- Halo
- GUTR (not particularly comfortable, but very effective)
- Sweat Shoot (not being made anymore, but my favorite)
Sweat Shoot was a wicking headband, with a silicone channel on the lower front to gutter the sweat away. Yes, I sweat a LOT. When the going gets really hard, tilting the head drains the gutter behind the ear.