I bought these gloves in the fall of 2016. I have a tendency to have cold hand when my fellow riders are warm. I used these down to about 40F and they were outstanding. My hands stayed warm and dry. I ride Dura Ace mechanical shifter and can shift well with these gloves.
As with most of the Pear Izumi products they are a great product for the price. PI is my go to brand for cycling apparel.
I have what I consider normal size hands and the large fits me very well.
Good gloves for cold weather. Nice padding and adequate insulation. They allow for plenty of dexterity for shifting and braking. I found out when I was riding in snow that turned to rain that they are definitely not waterproof, however.