Fly with wings on your feet with these very comfortable, super-light shoes! Made of breathable cotton, they are non-slip thanks to their rubber sole, but also very stylish thanks to the LEDs that illuminate your every step! * Easy to put on and take off, the strings are only decorative * Available in four different colors and ten sizes (refer to the following table to carefully choose which size to order!!) *SIZE CHART* SIZE21 internal insole length 13cm SIZE22 internal insole length 13.5cm SIZE23 internal insole length 14cm SIZE24 internal insole length 14.5cm SIZE25 insole length internal 15cm SIZE26 internal insole length 15.8cm SIZE27 internal insole length 16.3cm SIZE28 internal insole length 17cm SIZE29 insole length internal 17.5cm SIZE30 internal insole length 18cm We remind you that the length of the internal insole to choose can be obtained by adding 1cm to the length of the foot (from the toes to the heel)!