This is the XS Scuba Oceanways SuperView AccuColor Scuba Diving Mask Features: The exterior blue mirror coating is specially formulated to reduce glare The yellow tint on the inside of this mask makes everything brighter provides better contrast provides better depth perception Plastic box with lid included 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.