Dogwood Designs | Beaver Sports
These were recommended by a local bike shop owner that does a lot of winter riding and back country racing up here in Alaska. I haven't had the need yet on my commute, but the lowest temp I have seen is 18*F. I use either a set of old Air Force arctic mittens (the green nylon ones with the wool liner, leather palms and fake fur backs) or for this year a set of padded mechanics gloves with high vis. green backs with reflective stripes I picked up from Lowes. My ride is almost 10 miles one way.
Justin