Nox Equation

Equation is a standalone Nox line with no signature code attached, sold as the Equation Hard Advanced alongside Soft Advanced and Light builds. Nox files it under its hybrid head shape, which sits between the round frames of the X range and the diamonds of the attacking signature codes. The Hard build is the stiff one and the Soft the more forgiving, so the tier word here describes feel rather than level: all three are aimed at the same advanced player.