My Atomic Frameless leaks for me, too. It seemed to fit fine in the store. I bought it to replace a cheap Tusa mask that I had been using for the past 15 years or so since I was certified, even thought that mask did not leak. My theory is that the Atomic Frameless and perhaps other low-volume high-end masks are less tolerant of facial movements. I have discovered that I tend to subsconsciously make facial expressions when I see something cool underwater. "Holy cow, did you see that!"--that sort of expression. Making an effort to keep calm and not make facial expressions has helped, but the cheap old mask still leaked less. I think it just had a really wide skirt and high volume--it was a relative monster of a glob of silicone--and was somehow more tolerant of my facial muscles moving.