Synthetic soleBREATHABLE & COMFORTABLE: Knitting mesh upper fits close to your feet, lightweight and relaxing. Excellent air cooling function helps you stay away from stuffy feet. U-shape topline provides better protection for ankle, and soft lining comfortably fits to your feet.CUSHIONING: PU sole provides better cushion for shock absorption in long walking, so your feet won??t take a beating from the impact. Arch support helps to align your body position of ankle, knee and hip.DAMPING:Air cushion design on the heel of the sole??provide cushioning and support effect for the feet,perfect accord with human body engineering provide more the protection of the foot and knees.CONVENIENT: Pull-tab on the heel are easy for you to put on and take off this fashion sneaker in no time, matching with shoelaces for easy adjustment of tightness. Removable insoles can be taken out for air drying and washing, or quickly replaced with other insoles.MULTIPLE USE: Suitable for a variety of collocation. Fit for leisure indoor & outdoor activities, work, vacation, daily walking, shopping, driving, camping, travel, gym, jog, golf, etc.