I do a lot of driving in a work van. I usually leave at sunup and come back at sundown (particularly on short, winter days). So the sun is burning my eye sockets and melting my neck and chest all the time. I can't mod the van because it doesn't belong to me. Being mildly claustrophobic, things around my neck bug the crap out of me. I wear angler sleeves on my arms to keep my skin from being exposed to UV too much. But my neck and chest get hot a lot. The visor usually covers halfway down my face. If I put the visor low enough to really block the sun it also blocks my vision. When I wear darks shirts (almost every day) it's particularly bad. Any suggestions?