I was in an accident that resulted in a severed radial artery and digital nerve. My surgeon told me that snow sports were a no go for me, because my thumb couldn't keep warm enough which would risk me losing it. I was crushed. I find happiness in recreating outside both in adverse and fair weather conditions. These gloves have made it possible for me to play outside in the winter and I am forever grateful. I've tested these in temps as low as 5F and still have a thumb. Backcountry or at a resort, these are the gloves.