Black surgical mask pack of 50 with multiple layers of protection Also these livyor disposable masks are suitable for men, women as well as kids Livyor black masks are Uni-size fit masks for Men as well as for Women with Adjustable Nose clip and it is made up of light as well as breathable material, these livyor black masks are Skin-friendly and comfortable to wear. Also these livyor black face masks pack of 50 are made up of non-woven fabric for easy breath ability with 3 layers of protection. The first layer of livyor mask is Absorbent Non-Woven Layer, second layer composes of a high density Filter and the third layer is a Hydrophobic Non Woven Layer