I use these gloves for flying a powered paraglider, so I'm flying outside in the cold air doing about 25mph. I was looking for something to keep me warm when the temperature was in the 40s taking into account the wind chill at 25mph. I also needed gloves in which I could use my hands to grab and control the glider and the throttle. These gloves work very well. I have been flying in about 42 degree weather for over one hour at a time and my hands stay warm. The last pair of gloves I tried almost let me get frostbite from how fast my hands got cold. These gloves fit snug, but not overly tight. They actually feel like part of me. I can handle the throttle, the glider, and not even give a thought to having cold hands. The size runs true. I have an 8 1/2 inch measurment on my hands and I purchased a size 9 which fits perfectly. At first I wasn't used to how much of a second skin these gloves are. However, after using them twice they fit perfectly and do keep my hands really warm. I'm not sure how they will do in really cold weather in the teens or lower, but for my use, they really work well. I would recommend these gloves for the purpose I use them for. Many guys spend big dollars to buy battery powered gloves. For my purposes and the temperature I fly in, these work great. The gloves grab things very well too!