For over the past six years SeaDive/Oceanways has developed and field tested, anti-reflective (ARC) mask coatings of tempered glass. SeaDive/Oceanways ARC coatings now allow almost 100% transmission of light. Standard tempered glass has a minimum of 4%-plus rate of reflection which can seriously distort underwater vision. Only SeaDive/Oceanways has licensed application and laboratory fabrication. Only SeaDive/Oceanways has six-plus years of dealer/customer satisfaction. Only SeaDive/Oceanways offers RayBlocker fog-free lens masks. XS Scuba’s SeaDive RayBlocker SeaFire HD Mask provides the Best overall for all diving/snorkeling conditions”. The lenses reduce harmful UV/glare, surface grit in eyes and provide overall greater clarity. When you come up for a dive the lenses provide quick vision-return from surface making this the instructor’s choice in mask design. The RayBlocker Free Diver HD Mask low volume design prolongs the need for equalizing and allows for easy clearing. The swivel buckles of the mask are integrated into the mask frame. Rather than use a traditional snap-together” frame the Free Diver mask uses an integrated frame to keep the volume low and keep drag to a minimum. The XS Scuba RayBlocker SeaFire HD Mask has tempered glass lenses, a high-quality silicone skirt and head strap. The mask skirt is a double feathered edge design and the wide split style head strap combined for a comfortable and excellent seal on the face. The mask is equipped with a large easy to reach one-hand nose pocket for ear equalization. Mask comes with a protective mask box for transport and storage.