The strongest and most indestructible two-window mask ever The Atomic Aquatics SubFrame Mask is so durable, it carries a Lifetime warranty against frame breakage. The strength comes from the internal frame (subframe) molded directly beneath the surface of the silicone rubber skirt (patent pending). This subframe provides incredible strength and rigidity as well as eliminating the bulky external plastic frame in other masks. A stainless steel retainer locks the lenses in place and provides added strength to the nose bridge area of the mask. A wide field of view and great fit completes the combination of function, style and durability. (US Patent #7,181,778) ULTRACLEAR Lenses Both the Atomic Frameless and SubFrame models offer a new standard feature never seen or “seen through” before in a diving mask. We call them UltraClear lenses. What makes UltraClear special? Did you ever notice that normal dive mask lenses have a green tint to the glass? To see this tint, put your existing mask up to a piece of white paper and see for yourself. The green tint you see is the result of iron impurities left over in lower quality “float” or window type glass. That green tint distorts true colors and blocks out some of the light that reaches the eye. UltraClear is a new and exciting optical quality glass with exceptional clarity and high light transmission, with no color distortion. The exceptionally high light transmittance and lack of distortion in the UltraClear lens maximizes the light available for improved visual acuity, especially underwater in low light conditions. Available in Standard and Medium Fit The Atomic SubFrame masks are available in standard and medium fit. The medium fit mask has a skirt designed for narrow faces. The medium fit mask is identical to the standard model in every other detail. Both versions of the patented Atomic SubFrame come with the optical quality UltraClear lens. The SubFrame is strongest and most indestructible frame made and is warranted for a lifetime from breakage. Atomic Corrective Lenses Optional for the SubFrame. Precision ground optical glass lenses are available in diopters between -1.0 to -8.0 in .5 diopter increments. Lenses must be factory assembled. Compact Travel Cases Atomic Frameless Masks come in our unique compact travel case that matches the skirt colour – clear or black. The exclusive low profile travel case takes up only half the space of common mask boxes. Both SubFrame and Frameless Atomic Mask models are designed to fold flat to fit in a pocket or a compact travel case. Travel cases can also be purchased separately. Anti-Reflective Coatings Atomic Aquatics developed ARC (Anti-Reflective Coating) technology to reduce reflected light and actually increase the amount of available light transmitted to a diver’s eyes. The result is a greatly improved transmission of 98% of available light, compared to a loss of more than 14% of light with standard green “float” glass used on the majority of masks on the market.