They are pretty, classy, and can be dressed up or down. 5-8 size for her, but they were too short. If youll be pulling something off it vertically, maybe pick a different product. They are super cute and SUPER comfy. Im in IT and our floors are concrete. Heres to your work outs! Its integration with S4B is seamless and elegant. If you wear larger athletic shoes than regular shoes, I would go with your athletic shoe size. These are not for a lounging about type of slipper-fit, but they are well made and should last at least a couple of life-times. They are now £16 so more than double the price I paid so would not be happy if this is what happens so soon.