I absolutely love my KZFOO's. This is my second pair. I had bought my previous glasses at a well known place and they forgot to put on an anti scratch coat. At almost $600, I was mad they wouldn't rectify their mistake. KZFOO, here I come. I got all of the features on my KZFOOs, transitions, progressives, anti fog, anti glare, scratch resistant, and a fun pair of frames for less than half the price. These frames are big and chunky, but I love them. Very comfortable. Lots of compliments.