So, you got a nice pair of merino wool socks, and your feet were cold so you put them on. But your feet are still cold, what gives? The truth is, warm socks are only good at keeping your feet warm if they were warm to begin with. The merino wool socks by Heat Factory have a special pocket built into the toe that is just the perfect size to stuff one of those handy chemical hand warmers. Just activate your favorite brand of hand warmer and slide it into the toe pocket and relax as your toes quickly warm up and stay warm because they’re also wrapped in cozy merino wool.