Maui Jim is a good company and they will repair your glasses for free if you break them which you seem prone to do. I have sent a few pairs to be repaired in the past. I do not think Lux owns them, but not 100% sure
Because Luxottica is a HORRIBLE horrible company, if you have to deal with them after the purchase. They do not honor their warranties. If you buy a pair of sunglasses and they break due to a manufacturing defect, then you can just kiss your money goodbye.