NIKE Solarsoft KD Slide Mens Flip Flops Leather Leather and mesh upper Cushioned midsole for added comfort Soft, pliable Nike Solarsoft foam midsole with built-in grooves for optimal airflow, drainage and cushioning Nike Hyperfuse technology for breathability and flexibility with a seamless feel Harder Nike Solarsoft foam and deep flex grooves at the outsole for durability, traction and natural range of motion