Wider is better for me
The XL is about 2.5" tall and 3" wide. It's the same height as the Large but much wider (the Large is about 2.5" tall and 2.25" wide). I was getting a good seal with the Large but it was chapping and irritating the skin all around my nose (bridge, sides, and below). I found that the XL also seals well and does not bother my skin as much, although it still sits on the bridge of the nose the same as the Large does. I think it helps to have options to switch to when one type of mask is bothering your skin. This was a good purchase for me.
Rating: 5 stars