In May I ordered the first chlorine glasses that has not already survived the first holiday. The lateral rigid plastic connector for rubber band is broken quite quickly. We were able to thread the rubber band and connect with the glasses still. However, this did not take long, because then the plastic connection is broken between the two glasses. Thus we have disposed of the glasses. Since our model has color very much and I start from a material error, I have now bought again a chlorine goggles. The hard plastic compounds are no longer, it has now reoriented to more mobile parts. Next week goes on holiday to the seaside. We'll see how long is the shelf life of 2 chlorine goggles.