HOW TO DETERMINE THE SIZE OF THE MASK

In order to measure the maximum possible vertical circumference of the head, using a measuring tape, start from the tip of the chin (not under the chin!), go up the side of the head, over the ear, over the top of the head, and back to the tip of the chin to make a complete circle.
We recommend purchasing a mask that is the right size for your head or one size larger:
XS: 62 - 64 cm (24.4 – 25.2 inches)
S: 64 - 66 cm (25.2 – 26 inches)
M: 66 - 68 cm (26 – 26.7 inches)
L: 68 - 70 cm (26 – 26.7 inches)