I had been vacillating for months about making this purchase, based on 'will they fit me?' and 'will they be hot and uncomfortable?' but so happy I did purchase them in the end. They were individually wrapped in ziploc bags and immediately I was impressed with the quality of the products on opening. My head is quite small so all I did was fold 1/2 inch at the front under and pressed it with an iron. Perfect! They are comfortable to wear and it is an amazing feeling not to have to wear the mask loops on my ears as the side buttons work great! I can either hook straight on or if I want a tighter mask fit I can just figure of eight it before hooking over the button. They are comfortable and surprisingly not hot to wear at all and of course I just love the funky dental patterns that brighten up my work days. I am VERY happy with my purchase and I highly recommend this product. From a happy dental hygienist :)