The term 'summer shoe' can refer to two different types of footwear: SANDAL and espadrille. Sandals are open-toed shoes that typically have straps or bands that go around the foot and ankle. They are usually made of leather, rubber, or plastic. Espadrilles are a type of casual shoe with a canvas or cotton upper and a flexible sole made of rope or jute. They often have decorative stitching and are popular in warm climates.