The pair I bought in November 2021 lost its anti fog feature. I rec swim laps (I’m 71) 2-3x per week. I never touched or wiped the inside of th goggles, but I rinse an dry straps and store in the case. That has been a disappointment. That’s why I bought the new pair. I do hope they remain ant fog longer than 5-6 months. I also had to change the nose piece on my old and new. The nose piece often separates on the old pair. Other than that, I do find Magic5 to be very comfortable and Once adjusted, I do not have a problem with leakage. I swam competively through the 1960’s to early 70’s when there were NO goggles!