In the cold and wet weather, a steamed up visor is a serious problem. Reduced visibility is just plain dangerous. I find myself having to ride around with my visor open slightly and often totally open when I stop at junctions, to get enough air flow. it’s a constant battle, alternating between cold/wet face and steamed up visor. The problem is twice as bad as a glasses wearer. Once your glasses are wet, even when not steamed up, visibility is poor.