The MC Metafuse is built with progressive technologies and materials including a new Machined Coring Stage III Base making it light and strong. The heelcup is made of carbon injected DuPont Zytel ST and coated with nanocrystal metal particles. The new asymmetrical/symmetrical highbacks are made of full carbon fiber. Additional features include universal disks, precision adjustment forward lean, new magnesium buckles plus aluminum cage, new CNC anodized aluminum hardware, new Direct-Connect strap system with honeycomb foam construction, new open toe straps and full carbon toe ramps.