The Guardian Chroma HD Snorkel and Dive Combo offers improved underwater vision along with the ultimate comfort you need to keep exploring the seas. This snorkel and dive set includes a pro scuba and snorkeling mask that features dual color non-fogging HD lenses, that have been treated with the industry's best no fog lens treatment. What makes these lenses truly special is their high-definition, 9-layer coated lens that has a cobalt blue mirrored lens on the outside as well as an amber colored inner lens on the inside, improving vision while giving improved color correction within shallow depths. Enjoy your next swimming adventure with the Guardian Chroma HD Snorkel and Dive Combo!