XRun Baby Hiking Shoe, Grey, 38 Cork sole Textile comfortable, breathable and soft texture, while ensuring the vamp with a strong supporting force Rubber sole---lightweight and flexible, with good cushioning properties, non-slip Super-bright led lights in red, green, blue, yellow, turquoise, purple and white A black flap Velcro shut to hide the charger & light button and is in the inside (not inside the shoe but the inside facing part) It can be charged by phone chargers which you use for charging your phones