Unisex Quick Drying Water Shoes Pool Beach Yoga Exercise Shoes for Men WomenProduct Features:Unique and top-quality stretch fabric upper which creates a cooler and healthier shoe environment, breathable,quick-dry, super comfortable during water sportsSlip on design easy for you to put on and take off.The soles are made of TPR materials with non-slip resistance. It can protect your feet from sharp objects. Even on hot beaches, it protects your feet well.Our shoes can be used for the gym, beach, swimming pool, water park or other water sports like aqua Zumba, aqua therapy, sailing, bosting, kayaking, windsurfing, etc.for men womens.Size ChartS: 4.5-5 M US Men / 5-6 M US Women= Foot Length 8.46in = EU 36-37M: 6-7 M US Men / 7-8 M US Women= Foot Length 9.05in = EU 38-39L: 8-8.5 M US Men / 9-10 M US Women= Foot Length 9.45in = EU 40-41XL: 9-9.5 M US Men / 10.5-11.5 M US Women= Foot Length 10.0in = EU 42-43XXL: 10-10.5 M US Men / 12.5-13.5 M US Women= Foot Length 10.55in = EU 44-45How to measure our feet?From the longest toe to heelPlease stand on a pair of paper and mark where your toe and heel are. Then, measure the length from your toe to heel and find the most suitable size of your feet according to our size chart.Note: it is suggested to choose the larger size if the length of your feet is between two values in the size chart.