It's well known that you dry out like a prune on long haul flights.  Place Sephora's instant depuffing hydrogel eye mask ($8) underneath one of our eyemasks ($85) and you'll be well protected.  Plus you'll arrive at your destination looking fresh and well rested. This works!!  https://www.sephora.com.au/products/sephora-collection-instant-hydrogel-eye-mask-depuffing-and-moisturizing