Rubber Elastic rubber soft sole cushioning more comfortable. Heel measures approximately 0.67 inches; Platform measures approximately 0.5 inches. Ultra cushioned comfort that's great for the beach or the street.This flip flops run a bit small, if your foot is big and wide, kindly choose larger size. Lightweight, non-slip, high elasticity, rapid rebound material absorbs shock, reducing stress on feet, ankles and knees. High quality: 15 days 100% return guarantee. Please compared the chart size in the description with your feet length carefully before ordering.