Stubble...not my opinion, just something I read on the swarovski pamphlet I got from them. I would hope they can perform through that kind of weather, but I' m leery if something goes wrong and they don' t fix it due to cold weather or something silly. I' m just a little scared I guess....Woods, i' m going after work to pick up my scope, I' m leaning towards the Zeiss but I might opt for the leupold. I' ll let you know Monday. THX![8D]