These are literally the first goggle I have ever had that did not make me want to scream and stomp out of the pool in frustration (and I am 44 years old). I love swimming, but every time I try to build it back into my training routine I give up because of goggle issues. I've tried lots of other goggles and they all leak, and I need them not to since I wear contacts and have super sensitive eyes that I need to protect from chemicals. Other goggles also hurt and put too much pressure on my eyeballs (also something I need to avoid). I even tried more scuba-type goggles but had the same leaking issue. These really are magic. They have changed my life. From day one I just put them on and swam for 30 minutes straight without having to fiddle or adjust once. I love them. Thank you.