Hello friends, i am going to share my opinion with titan.i have bought at least 2 pairs of space from titan eye plus in last month.firstly, there is no mark of crisal on the front of the glasses, which is the landmark of crisal lenses which you should be able to see on condensation.secoundly, there was a crack and scratch on the glass, albeit minor right when they dispatched the glass.which increased over time usage.when I took it back for quality testing they made the crack even bigger during the qc procedure and gave a certificate that it’s not a quality issue and that the glass buckled under pressure.and this is totally wastage of money.but it has good design and good look.