The BIO HAZARD is Rainbow Fin Company's line of fiberglass & Pro Core Twin, Tri & Trailer fins.  Pro Core fiberglass provides more drive, speed and power than standard fins. They were designed to provide incredible speed, drive and holding power.  Twin fins come as a set of 2 and are available for FCS, Futures and Lokbox bases.

Futures Base Set.

Assorted colors - email if you want a specific one.