From GB, the 2-Night Glitter Mary Jane Pumps feature: Synthetic upper with allover glitter detailing Buckle closure Synthetic lining Rubber outsole Approx. 0.8" platform height Approx. 3.3" heel height ***Normally, I wear shoe size 7.5, but for this shoe model, I have to wear size 8.5 **** These shoes are suitable for people with small and narrow feet because the width is narrower than usual and run smaller than usual. Typically, if you wear a size 8, it is recommended that you purchase 9, or if you wear socks, you should use size 9.5