Boundless: Blackout Eye maskAt a quick glance, to an undiscerning eye, the Boundless Blackout Eye Mask may look like a mere airplane sleeping mask, but take a peek behind the scenes to show exactly what this mask can do. Ensuring total sensory deprivation of sight, while being constructed to fit with perfect comfort, the Blackout Eye Mask you precisely what you are "looking" for! Designed to give you the total blackout experience you are seeking but without the itch or cutting