I have severe raynauds secondary to scleroderma. The raynauds has affected my hands, knees, and feet. I get arterial ulcers on my fingers and toes. I live in Michigan. In winter I wear heated insoles in my boots and heated gloves. This is not enough even though my heaters have three different temperature settings and yes I've been burned not to notice till later. Please tell me any boots, heaters, sock liners, gloves liners etc that anyone has had success with for winters. I also use these devices intermittently through summer as I cannot hand the breeze outside or air conditioning.