SOLE:TPU sole is durable and flexible, it can free bending with you for increased comfort INSOLE:The honeycomb cushioned soft insole for shock absorption and cushioning. UPPER MATERIAL:The hexagonal mesh textile has excellent air permeability that will keep your feet away from the wet condition, creating a cooler, drier and healthier shoe environment for you. SHOELACE:Soft mesh hug your foot for dynamic support,loosening and tightening with your feet natural motion. SHOELACE:Soft mesh hug your foot for dynamic support,loosening and tightening with your feet natural motion.