To take the measurement for your Coppola you have to pick up the hair if it is very long and use a tape measure (alternatively you can use a strap and then once you have taken the measurement lay it on a plane and use a common ruler or rigid tape measure to verify the measurement) and measure the circumference of the head by leaning on the nape of the neck and passing a centimeter about above the ear to get above the eyebrows and about the center of the forehead.

The tape should not be too tight and if the size is e.g. 56.5 we recommend to exceed and select the size 57.

If you want to have a comfortable size, select an extra size.