I picked these up refurbished a couple days ago. I guess I got lucky as they have no apparent defects, but they came with only one pair of the triple comfort foam tips. Fortunately for me they seem to be the right size, but in case I need to replace them I'd like to know what size they are. They have a sort of turquoise stem and measure about 12mm in diameter. Anyone know? I'm guessing medium.
If anyone else is interested in going the refurb route, do pay attention to supplied tips. I paid $100 and I guess this was why they were so cheap. But after using them for a while I wouldn't hesitate to buy them at the going rate for a new pair, totally worth it.