FCS K Fins, Made in USA

General Discussion
1

Anyone happen to know what the original FCS K Fins, made in the USA, were made out of?

2

I had the old one with the blue side fins and white center… back in 2003. They were just plastic as far as I know. But they were still rigid enough to punch through a tufflite board that I was using at the time. got caught on a reef

3

Thanks-- I have a black set, feels like some kind of crisp rigid plastic. I appreciate the confirmation (& sorry about yr board!)