Firewire Mashup buying guide
The Mashup is a 5-fin fish hybrid — a wide, flat-rockered shape that brings fish-inspired speed and planing to a board with thruster or quad versatility.
Shape and performance
The Mashup has a fish-inspired wide outline with the versatility of a 5-fin box. Run it as a thruster for more control, or remove the center fin for quad speed and drive. Works well in small to medium Southern California surf — the extra width and flat rocker generate speed in conditions where narrower boards struggle.
Mashup vs Seaside and Beyond
TheSeaside and Beyondis a longer midlength quad fish (6'8"–7'6"). The Mashup is shorter (5'2"–6'3") with a 5-fin box for more versatility. Choose the Mashup for a shortboard-length fish with thruster or quad options.
Fin setup
5-fin box in Futures (most boards) and FCS II. Browse5-fin sets,Futures fins,FCS and FCS II fins.
Related Firewire models
Seaside·Seaside and Beyond·Too Fish·All Firewire