Not what they used to be.
I have been using Sporthill 3SP mitts for 15 years as a third layer for sub zero running. Since they don’t make them anymore I tried these. The fabric is much thinner and does not perform as well. I returned them.
Editors note: The 3sp back hand is the same fiber and weight as always however the palm is a polyester fabric which is not as warm as 3sp. Mitts are also warmer than gloves.