Hey there big boy Yes they are EXTREMELY warm, could easily go into the negative weather with them! On the flip side they are very big..If you have pole straps don't count on your gloves going through it....I don't recommend them...I will be using them this season, but after this season I'm getting another mitten..Cheap I know, but not worth the investment..look into the Saga mittens..
Dude, you gotta go for Pimp Hands. I bought a pair of them this year and I will most likely never buy a different brand of mitts. they are super warm, super comfy and not to big and bulky. I would definitely recommend them.