DD replaces FST balsa rails with interior carbon rods, engineered inside Firewire's Proprietary Sandwich Blank Construction and suspended inside high density rail foam.

Developed in partnership with Surfboard Suspension Systems, the rods are calibrated in thickness and placement to create an internal carbon frame, which controls the rate of flex and flex memory. Connected through a series of high density nodes, the rods are also connected to the base of the FUTURE FINS boxes. The end result is a high tech, incredibly lively surfboard that is primed for performance. Please note our boards are definitely not indestructible and if slammed by a thick lip, or if you land incorrectly in the flats after doing an aerial, it is possible to break them.

DD has different flex characteristics to FST's PARABOLIC Balsa flex pattern. With a slightly stiffer and snappier response, the DD also incorporates the high density aerospace composite on both decks.

DD's retail price point is slightly higher than FST and reflects the more complex construction involving the carbon rods.