I know that this was notorious on Fake oakleys, but its not uncommon to see it on authentic frames as well. I received a mint condition 1st gen Black racing jacket , i went to wipe the smudges off the polished black finish and then BAM! the "k" started to rub off. I was mortified! I honestly was kinda sick to my stomach, i even had a hard time sleeping that night. Well I pondered on how to fix it but there was nothing that tiny that i could find to redraw the "k" with out it looking stupid and messy. So i rubbed the rest of it all for a clean black frame, whats ironic is the OA LEY was hard as heck to rub off, go figure....But it kinda looks better not having the name there. I was never a fan of the nosebridge logo on racing jackets but i wanted to keep it original you know. ...OH well.