I purchased these for rides between 30 and 40 degrees F. At or below 38 degrees my fingers quickly become uncomfortably cold (2 rides, 38 and 35 degrees). I could add a 2nd, silk liner but mobility is significantly compromised. They fail to perform as advertised. Additionally, above 45 degrees the material on the palm sticks to the (exceptionally clean) hoods of my Shimano STI levers. I almost pulled myself down when my wheel jerked sideways as I simply lifted my hands off the hoods. AVOID these gloves.