An all-gray ensemble is the perfect way to go tonal! The dark gray mini UGG boots have been paired with dark gray trousers, a heather gray blouse, a light gray wool jacket, and a gray sweater that has been slung over the shoulders. It is possible to wear this with any color of UGG boots or slippers; all you need to do is ensure that all of the components of your clothing are the same color as the UGGs that you own.