Two sizes (SM/MED and LG/XL) . . the only difference in the two sizes is the length of the elastic straps. Fabric mask is the same in both sizes.
Small/Medium size fits children and "most" women.
Large/X-Large fits men (and women who don't want it too tight)
Most fabric masks are pleated along the edges and open up in the middle when you put them on . . . these masks are sewn in the "open" position to fit your face.
Elastic straps fit over the ears.
PLEASE NOTE: Because of the nature of this item, ALL SALES FINAL! No returns or size exchanges.