Synthetic Synthetic sole SUMMER ESSENTIAL ?C Our popular men??s beach flip-flops are the perfect casual sandal to wear all summer long. COMFORTABLE & DURABLE ?C A flexible and soft 7/8?? EVA foam sole that is durable, supportive, and comfortable so you can wear these for hours. CLASSIC DESIGN ?C Designed with a comfortable textile thong strap and an EVA outsole with light traction. STYLISH ?C Available in versatile solid colors with Alpine Swiss mountain logo: Tan, Black, or Gray. FIT ?C Medium width and available in full sizes 7 to 15 US.