See sizing suggestions below Reversible Face Masks are 100% cotton to ensure lightweight comfort & breath ability & contain an inner layer of cotton flannel for added protection. The contour design & soft elastic ear loops work together to provide a comfortable, snug fit while the contrasting prints make the masks more versatile with your wardrobe. It’s a win-win the protection you need with the comfort & style you desire. One size fits most. Materials: 100% cotton, elastic (contains natural rubber latex) Prints: Gingerbread Man, Green Sizing suggestions: Because of the nature of my design, it is difficult to give specific suggestions for which size to choose. However, I am going to give some general information to help with that decision. 1. The difference between the One Size Fits Most & the Large is about 1/2 inch in height. The width is approximately the same for both sizes. 2. Either size will fit a variety of face sizes & shapes, but if you have a longer face or a distance of more than 5 inches from the bridge of your nose to your chin, please order a large. (Please see image for measuring instructions) 3. If you are in a position where you will have to yell often or speak loudly or rapidly, you may want to consider a large. Because the mask curves over the top of the nose to prevent air escaping, particularly wide jaw movements can affect your ability to keep the mask in place even if it fits correctly otherwise. A large would give some extra room for that jaw movement. 4. If you do not see a size option for the mask you like, just ask! I may be able to offer a Large or offer a similar print in Large. 5. I do have an Extra Large pattern available upon request. It is significantly bigger than the Large both in width & height. Reversible Face Mask, 3 Layer Gingerbread Man, Green