Not fully tested yet, but great product
I bought these as an investment for skiing out West where the wind is cold and quick on the lifts. So since I bought them in March for a April ski trip, the temps were not cold enough. I did wear them for 3-4 hrs the first day which was 30 degF and my hands and fingers were toasty warm.
I bought the grey, size 10 and it fit perfectly as per the size chart. I have never had mittens before and have been using the North Face Montana glove for the past 2 yrs.
These mittens have a great under the wrist (not over the wrist) velcro strap with looks and feel durable. The drawstring on the cuff is easy to use with the other mitten on. The wrist strap is thick and snug with no drawstring so there is no sacare of loosing the mitten on the lift or at the top from the wind when not on your hand. The removable liner is great incase you drop it in the sink in the bathroom to dry it out.
I did not try skiing with only the shell in the spring skiing as I was only wearing my north face liners.
I am worried about the leather and durability/storage over the summer and will have to see how it does, but the leather cream that came with it should help.
I can't wait to try these babies out in Colorado during -20 degF powder..