They didn't hold up very long doing what I do, and they actually felt like they cooled my hands off if anything. Definitely warm-weather gloves for light duty work. They feel great, but would benefit from some conductive surfaces to make electronics easier to manipulate. Ring finger of left hand started coming undone about 2 weeks of light work. Not sure if it was a defect or if I pushed the gloves too far; either way I won;t be getting them again, but they worked ok.