Thermoplastic Polyurethane sole ?Upper Design: ?Stretch Breathable Mesh Upper with Softness and Excellent Flexiblity ?Breathing Insole: ?The Interior of The Shoe Is Designed with A Honeycomb Hole To Absorb Sweat and Deodorize, Allowing Your Feet To Breathe Freely ?Anti-Slip Rubber Sole: ?The elastic soles are soft and flexible, provide long lasting comfort and support, have no burden when movement.