2 Sizes available: Regular or Large
For best size fit to your face: Measure your face from the bridge (Middle) of your nose to the earlobe, that should give a good indication of what size you need.
X-Small: Suggested for toddlers and small kids
Small:Older Children & Women
Regular: Men & Women
Large:Broad face shapes
Most face shapes fit regular. Large size is great for broader face shapes and more prominent jawlines.