Ethylene Vinyl Acetate sole SIZE SUGGESTION: If your feet are thin with normal size 8.5, 9 or 10, we would recommend you choose one smaller size than the ones you usually wear. COMFORTABLE, EASY TO TAKE ON & OFF : No shoelaces and the high elastic band make it easy to take them on and off. The bionic design fits your feet comfortably while shoe lightweight saves your energy even after taking thousands of steps. ENVIRONMENTALLY FRIENDLY: UIN pays much effort to reduce negative impacts on the environment. Our materials are safe with environmentally-friendly features, limiting pollution to the ecosystem. None of UIN sneakers incorporates fur or other elements of animal origins. TAILORED FOR TRAVELERS AND ART ENTHUSIASTS: UIN Footwear's loafers are a testament to two passions — travel and art. Many travelers and art enthusiasts also believe in such an enthusiastic, casual and fun approach towards fashion. UIN Flats are also perfect for daily use, applicable for attending school, driving, traveling, party, concert, and shopping. GIFTS FOR EVERYONE ON YOUR LIST:The beloved people in your life deserve the best on some special days. No matter if you're shopping for your wife, husband, girlfriend, boyfriend, mom, sister, friend, or kid, these unique painted shoes will help to express your love and catch the eyesight of others.