If you haven't found gloves that can keep your hands warm, your issue might be one of poor circulation and/or failure to keep your core warm rather than inadequate gloves. Basically, your body's thermoregulation systems will decrease circulation to the extremities if the core feels chilled, in order to conserve heat. Less circulation means less warming for hands and feet, so if you want your hands and feet to be warm, the first step is to make sure that the core stays warm.