Hi I bought a pair of lightweight bendable glasses from 1001 optical in Sydney last week, its ultra light compare with my other metal or plastic frame.
Its pretty good deal, they told me that its a new Korean brand that they are promoting, they claim to be unbreakable, if it break they will replace a new pair for you.
Cost normally $250 for the frame, its free now and you only need to pay for the lens.
Only drawback is there isn't a lot of choices like other fashion brand eye wear.
HAve you tested how far they can bend?