Size Guide

With your mouth closed and teeth together, measure from your lower eyelid, down to your chin. Check your measurement against the sizes below.

If you measure between sizes, choose the larger size.

Our Medium and Large sizes are designed to fit almost all adults. It's hard to go wrong with either size.

KIDS	MED	LRG	X-LRG
7.5-8.7cm	8.7-9.8cm	9.8-11.7cm	11.7-13.9cm
2.9-3.4 inch	3.4-3.8 Inch	3.8-4.6 inch	4.6-5.5 inch