How to measure size
Place your index finger and middle finger from the base of your ear.
Check the position of about 2 lines.
Measure the length by running a tape measure or string around the red line parallel to the ground.
When you put it on, put your index finger around your temple,
Just the right size with enough room for one finger to fit in.
Items with an adjuster on the inside are
It can be adjusted smaller by about 1 to 2 cm.
