Foop Technology is a proprietary technology developed by TRPX that uses a full-length layer of fibers arranged at a 90-degree orientation to the shaft axis.

This technology utilizes the movement of returning the shaft diameter, which becomes elliptical (compressed due to flex) during the downswing, to a true circle, achieving unprecedented ball speed improvement.

The carbon sheet used in the shaft has a pattern of straight layers (0°) and bias layers with a spiral pattern. Normally, the shaft is wound with bias and straight layers. However, with Foop Technology, only the straight layers are cut.

While the shaft is normally wound with bias and straight layers, Foop Technology uses Foop (a ring-shaped straight layer) to wind the shaft.