Sizing:
Low Heel - True US size
Pro Heel - True US size

(The insole is removable as well, providing extra room for the foot because there is padding built into the sole of the boot)

Please note: Microfiber boots stretch to accommodate your foot and ankle. Once stretched, they fit like a glove; however, they do not retract to the original size and shape. Therefore, it is best to use the same thickness sock for your boots each time you wear them. We recommend a thin nylon or micro-fiber stocking.