These masks are the best I have found for the hearing aid and glasses issue. The top tie can be placed far enough up the back of the head so as not to interfere with the hearing aid.I like over the head straps, however they had no hard frame. The fabric just stretched across your mouth and it feels like every time you breathe in you are getting suffocated by the fabric being sucked into your mouthI cannot stand the masks that loop around the ears. Especially if you have to wear them for an 8 hour pulse work shift. So I love that these loop around the head. They are so much more comfortable. They are also much easier to let slip off and hang around your neck and then quickly put it back on. It is nice that it has a place to add additional filters. This also in effect puts two layers of fabric over your mouth without a filter and 3 layers with a filter.I consider myself to have a rather large/wide face, so I got the L/XL, which is HUGE, even on me (see pic). Despite this, I do really like these masks. They are soft and comfy, as well quality. I also like the color assortment and cost for your money. I also like the adjustable head straps (not a huge fan of the standard behind-the-ear loops on most masks) that are easy to maneuver. Easy to put on and take off--or leave hanging around your neck for the next stop.The masks do lose some points though:* The fabric, while being double-layered, is thin and, by itself, would not provide much protection.* The pocket for the filter is the size of the entire mask, and being how large they are, the average filter is far too small (you can fit 2 in there). It gets bunched up and/or lost inside the pocket, so it could be covering your mouth and nose, or could be at your chin or cheek, which doesn't do anyone any good.On the other hand, it works well for double-masking and fits perfectly over an N95/KN95 mask.I guess they are OK at best. I don't like these super cheap masks that wrap around my ears. Taking them off when I am wearing hearing aids and glasses is a real pain. Because, when you try to take off the mask, you somehow get the strap to hook onto my hearing aids and the aids go flying off onto the ground. The ones that do not hook around the ears but just go around the back of your head are way more comfortable and they don't try to take of my hearing aids.Main reason I bought is that the elastic goes around head and doesn’t rest on the ears. Lost one hearing aid when elastic got tangled in the aid which fell to ground while removing mask and couldn’t be located. This mask has eliminated that problem. The fabric fits snug and is a little too close and I have to keep tugging it. A different fabric that doesn’t adhere tight to face would be better. Until I find that this is ok.but I like the fact that it doesn’t fold my ears down, making me look like Dopey (of the Seven Dwarfs). The method of tying behind the head works well. I’m experimenting with putting a standard mask (ear ties cut off) inside the pocket to improve effectiveness. Given that I haven’t worn it a lot so far, I won’t rate “Durability” (though it seems like it should hold up pretty well).Dislike how I put it on and off … The seller was amazing !, Just my personal preference of this mask .Other might love itTe dicen que puedes comprar filtros y ponérselos, pero lo ideal es que los incluyeran. Además es increíblemente difícil acomodar los filtros porqie el hoyo del filtro solo está de un lado.Very comfortable to wear. Easy to wash. Excellent product.Nice and soft but double layer material way too thick. Hard to breath.Nothing to dislike, soft on the face