For riding in a cold rain I use Glacier gloves when the temps are below 45f/7c. I heard about them here on BF and bought a pair last year. They keep my hands warm and dry down to about 25f/-3c. They fit a size small. I'm 5'9" with average size hands. I bought a size L and they fit too tight. I kept them anyways. I don't use them that much. But they are in my bag when the temperatures dip.