We are all made differently so its important you measure from ear to ear with a flexible tape measure or string and a ruler.
Sizing Guide Makmask Basic
The guide below suggests M, L and XL for most adults but we strongly recommend you measure your ear to ear distance to ensure you purchase the right size mask.
We recommend the XS and S for children aged 4 to 12. However as our children come in different sizes we strongly recommend you measure the ear to ear distance.