Synthetic Imported Rubber sole TWINPIN MENS SANDALS: Big comfort with little cost make these mens flip flops a popular mens sandals style across the world. FOOTBED and ARCH SUPPORT: The soft EVA footbed with anatomical arch support give your feet full-satisfaction comfort. FLEXIBLE: Materials for the Twinpin mens sandals are built with our Flex Triple Density EVA to move with your feet. No plank feel here. STRAP: The vegan leather upper strap has a jersey lining wrapping around the contours of your feet without rub for more comfort. OUTSOLE: Molded high density EVA mens sandals outsole is grippy for multi-directional mens flip flops traction control.