These relative inexpensive masks are lightweight, soft and easy to get used to, quite comfortable and a great way to get some rest on a plane and they are lightweight and you can tuck them in a handbag or such to carry with you.A dreaded overnight flight and from past experience we were sure that we would not be able to sleep on the plane. A friend suggested that we get sleep masks and I went shopping. There are a lot of brands and types of sleep mask available but the Mack's Shut-Eye Shade was a great choice. Called a premium mask I can't say enough about it. I was concerned about it fitting well and it turns out this mask was a great choice. The mask fit well on my smaller face as fit my husband larger face. The elastic band is what gives a snug but not tight fit and unlike Velcro doesn't leave a "wad" to lay on. These mask are very effective keeping the light out without your feeling that you are wearing something on your face. Actually neither one of us were bothered by them and we were able to get some much needed rest. Effectiveness The mask doesn't come in sizes but I was told it would fit both my husband and me. We both found the mask to be comfortable and the adjustable straps allowed it to fit both of us. We were surprised that we could open and close our eyes without bumping the mask. The mask are lightweight soft and had a nice feels. They blocked out all light and were very comfortable. We both slept for several houses and woke up relaxed. Ease of Application These mask are small but do a great job. They are easy to you and the adjustable strap make it easy to slip on or off. I already knew velcro straps were miserable and am a firm believer in elastic for adjusting. Scent These mask had no smell and the fit on the bridge of the nose.