This is not a manufacturing defect, we have bought 9 LAB Retro chairs, all of them are built identically. The chair is not really comfortable for longer table parties and so the guests never stay seated for too long...

Hi! I have to say that honestly I’m not using it often, since I mainly use it only when I eat in my garden during summer. I can say that I’m tall and quite heavy, but I don’t feel it uncomfortable for the moments I use it. Mine too has the backrest almost at 90º, but I don’ consider a charin on which to relax and I never needed to use it often. I hope that my feedback helps you also if it’s not so complete.