If I could write a review, it would be of the highest order. I have lived in Alaska for a long time and any type of cold to my fingers makes them turn, white and sometimes black. The condition is very painful and I have gone through a lot of gloves trying to keep my fingers warm. I had no hesitation to pay the price for these gloves if they would do the trick and keep my fingers warm. To be able to do the simple things outside like walk the dog, view the aurora, star gaze, go to Fur Rondy and watch the start of the Iditarod were getting difficult for me to do. I was amazed that these gloves did keep my fingers warm, easily. I haven’t tried them in below zero as we haven’t had much of those temperatures yet, but we did have 14 degrees and they did great. These gloves so far have made a world of difference to me. The men's medium size for my measurement of 8” is just right, although the fingers are a tad long for a woman. I have RA and the knuckles are getting pronounced so having the width is very important to me. The battery charger has a lock mechanism which isn’t explained but easy to figure out. Also, make sure that the plug to the battery and charger matches and is put in with the top to the top. The “TOP” is all in black and and could be hard to see. So far, I am extremely pleased with my fleece 7Volt gloves and will recommend them to all my friends.