The swim goggles are coated with the latest anti-fog protection with specially designed, this superior grade snorkeling mask features a classic and optimized design that amateur and professional scuba divers have favored for decades.the scuba diving mask features a durable tempered glass lens that will allow you to see perfectly clear underwater without distorting your vision, Even when diving a few feet below the surface, equalizing your ear pressure is crucial to avoid injuries. this diving mask is thoughtfully designed to allow you one-handed access to the nose pocket, so you can clear your ears easily and without risk.