Wearers of glasses: Don't be put off by the lack of a nose bow. I cut a nose wire out of a disposable paper mask and was able to fit it into the Wild Republic mask without even cutting a hole. The seams and material are stretchy enough that you can thread the wire through the seam. I actually inserted two for a very tight seal around my nose. (See the picture of how I made it.) Adult masks are large and comfortable. I have a large head (cap size XL or XXL and a motorcycle helmet) and these masks fit me well. People with smaller heads may need to trim the ear hooks somehow. The mask consists of two layers of material, thick enough that it looks like I'm filtering something, but not so thick that it's difficult to breathe. Five stars because (although some of us have to make a nose wire and adjust the length of the ear loop with our own hands) the masks are inexpensive, well made, and fun. I just needed some of the latter.