The Hubboards Quad Core has four times the performance of any regular core. They fused two layers of engineered polypro core around a layer of tension tech mesh suspension. By adding surly slick, bottom mesh & a woven graphite stringer to these core's the final result is a core that responds like 2 core's in one. The quad core produces twice the projection & offer's twice the durability. With Jeff's refined signature shape & CNDC Deck the Quad Core plus is the most advanced board on the market & exclusive to Hubboards.