I'm using hoya transition lenses. Got it from one of my friend who is also an optometrist. I paid rm250 for the hoya transition lenses (which he claims change colour faster compared to cap ayam brand) and rm200 for lee cooper plastic frame with wood texture. quite cheap if you ask me. no scratches at all. using it for 9 months already. dropped it here and there. it flew in the snow (i was wearing them all the time during winter in germany)