I couldnt be happier with the masks I got in the mail yesterday from Gregory. He has made up three dive mask for me over the years, and I am always satisfied with his work and turnaround time. Greg is very personable and will answer as many questions as you may have over the phone or via email before sending him your mask, and his prices are much better than the larger dive mask company. Support small business, let Gregory Maggiore with Leonard Maggiore Opticians be your goto Optician for Rx Dive Mask.