Enerplex. we understand that a face mask is not one size fits all - We also know that if you wear a mask. he must be comfortable. well adjusted. and ensure adequate protection which is why we have come up with our High End 3-Ply Safety Masks in 3 sizes. We have developed a size chart for young people. Medium / Large. and Extra Large. If you have a problem with the size immediately and we will help youThis size fits most adults. See Size Chart in Image Section - Key Features: Face Masks are Three Layer Design - 100% Polyester DWR Outer Layer. Mid layer cotton blend. NanoFine cotton blend inner layer - soft against the skin. Designed with high quality lightweight fabric for maximum comfort. Our stretchy ear loops allow for a secure fit and fit.Ideal for everyday use - indoors/outdoors. ideal for essential workers. can be used while travelling. go shopping. go on a grooming appointment. etc.Maintenance: Wash before first use. Machine wash cold. Do not bleach. Do not dry clean. low tumble dry or flat lay dry to prevent shrinkage. Not fabric softenerWith our Customer Service face masks. quality and safety is our number one priority. If you have any problems with the size of your safety mask immediately and we will gladly take care of it for you.