The Wilson Pro Staff 97UL v14.0 Demo Tennis Racquet brings back some classic Pro Staff flex from years past. The frame features Wilson`s Braid 45 construction, in which the double braided fibers are arranged at a 45-degree angle. The design improves ball pocketing and reinforces the racquet with incredible stability. Paradigm Bending is new in version 14. The tech is a unique carbon fiber construction that optimizes the hoop and shaft`s bending profile for greater flex without losing power. Simply put, v14 has more flex in the shaft. The Pro Staff 97UL is the easiest Pro Staff model to use thanks to its light overall weight and incredible mobility. Compared with v13, this model offers a more comfortable flex and the same easy-to-swing headlight balance. The 97UL has a thicker beam than the heavier versions to provide a bit more power and stability. Features: -Braid 45 construction places double braided fibers at a 45-degree angle for stability and ball pocketing. -Paradigm Bending is a unique carbon fiber construction that increases the flex of the shaft while maintaining the power and stability in the head. -String mapping for a denser string spacing and more control. -Lightest Pro Staff racquet.