i got my 2 sets sept 2018 i wear them every day all day. i have ordered many other progressive, and they just didnt seem to do the job and sent them back. one pair broke late 2020 and the other pair just broke last week. both in the same place, on the lens frame part, one on bottom one on top. i am ordering another 2 sets today. all my glasses, no matter if prescriptions or store bought readers always seem to break in the same spots, so i really dont think its the manf. i have bifocals from 25 years ago i just went to the dollar store and found frames that will fit the lens and changed them out, mind oyu these are prescriptions and frames still broke, i can still see out of them the reader part could be a lil strongert biut they are a good standby not to mention the lens change to sunglasses.i am trying to find frames that will fit the lenses to these glasses but i havnt really looked much. they may not be perfect fit but they do the job.im happy for 20.00 for 2 pair, they lasted me 30 mo. cant complain. like i said even exoensive bifocals break on me in the same spots, so i beleive its kust how i take them on and off. my opion.