Put my dual star grip warmers on a couple days ago and let me say I wish that was the first thing I put on my bike. I quit riding when it gets below 20 degrees and the only thing that ever got cold were my damn hands. Not anymore with these mothers :thumbup . The day I tried them out all I had were my leather gloves nothing on underneath and it was about 30 degrees.....my hands were nice and toasty. If anybody rides when its cold this would be a great investment. But get the dual star ones not any of the other cheaper names....these are the best.