As a long time wearer of varifocals, I spent some months debating the best option for a first time exotic snorkelling holiday. With age , finances and future opportunities not on my side I didn't want to invest a hefty sum. I just wanted optimum vision. The advice from my optician wasn't especially useful. So armed with my prescription I rang you guys. I came off that phone so excited..you had the off the shelf solution straight to hand. The mask came just days later. I danced round the kitchen with delight wearing my new mask much to the amusement of my granddaughter. There will be no problem now seeing the fine patterning of those colourful tropical fishes and corals. Thank you so much. £130.00 very well spent. I