didn't Gath make a windsurfing helmet with an integral visor? I recall wearing a prototype once windsurfing the north corner of Andrew (wind 45+ kts) and it wasn't too awful until you had to itch your face (it was practically full face, like a motorcycle helmet)
Yeah - but I believe those are open on the bottom - and that's where the spray gets you. When on the trap, waves hit your feet and shoots up at your face there. Even tight fitting sunglasses are no match for that saltwater fire hose.
