Buy with caution. I wear size 10 shoes and bought them in the US for men in size 10. They are oversized and mislabeled. The size is actually the European 44, so the American men's size 10.5. I returned size 10 for US men's size 9.5. These fit perfectly. However, the size is wrong again. EU 43 is US men's size 10, not 9.5. Walmart's product listing states that these shoes are true to size. It is not true. These water shoes come in a variety of styles and unfortunately this review is for all styles and not the style I purchased. Styles with an elastic cord that allows you to adjust the fit are the best. I'm actually very happy with the comfort of this shoe and will be wearing it often while boating and jet skiing.