These gloves are rated for -10, but they still don't keep my hands warm at 35. I'm starting to think poor circulation in my hands has something to do with it, which is why I still gave these gloves a 5 star rating. They are definitely thicker than the others that were rated for 30, because they are insulated, and my hands do stay warmer than they did with the others.  They are almost too thick for what I need, but I guess that is a sacrifice I will need to take.

I highly recommend buying a size larger (which I did), since they are insulated.  These in extra large fit almost exactly the same as the non-insulated in large.