Have had my Costa Rx Sunglasses for about four years. In the first year, the rubber on the side pieces separated from the plastic. Costa gave me a new frame. Then last year the rubber nose piece separated from the plastic. I contacted the Costa Rep. who tried his best to help me. He informed me that this is an issue with these frames and tried unsuccessfully to resolve the issue with Costa. He referred me to Costa Customer Service who referred me to Luxotica (who recently bought Costa) Customer Service. Long story short, nobody would take responsibility for this manufacturing defect. Apparently Luxotica has not set up a Costa repair facility, so they don't have any way to deal with issues like this. Bummer. Love my glasses, but feel kind of blown off after buying Rx sunglasses that cost me $700.