Help - what make of mittens?

I'm a big fan of Hestra gloves. Yes, they are more expensive, however mine have lasted 3-4 times longer than other ski gloves I've owned. I've just purchased replacement fleece liners for mine, which is another Hestra plus.

Edge & Wax sell a wide range of Hestra's, with a sale on currently.

http://www.edgeandwax.co.uk/

I have a pair of Salomon leather gloves that have been used at minus 10ish with no cold hands

And no sweaty hands either