Although the internals of the VariShock are proprietary, this general diagram illustrates some of its features. According to Alston, the internal valving circulates the shock fluid in a single direction-unlike a traditional twin-tube shock. This allows the fluid to absorb and dissipate heat more efficiently. The VariShock also uses a high-density, inert gas cell that prevents the gas in the shock from mixing with the fluid. This allows for more linear shock damping and tuning results.