Dr. Comfort Tonya Women's Slipper Boot Synthetic Features a higher rubber outsole perfect for indoor/outdoor usage. Includes Dr. Comfort\'s Supportive Gel Insoles Dr. Comfort Slippers fit big - If you are a half size, please order a size down (e.g. size 8.5, order size 8). This lightweight slipper comes with a Dr. Comfort gel insert and has a toe-box for extra protection. The microfiber upper with button closures makes it easy to slip them on your feet.