YONEX POLYTOUR STRIKEThe Yonex Poly Tour line was launched in 2005 with the original Poly Tour string. The Poly Tour line has steadily evolved over the years, featuring polyester strings with a variety of shapes and technologies, all designed to complement the explosive and spin laden strokes of the modern power game. For 2018, Yonex adds Poly Tour Strike to the family, a round monofilament used by Canadian phenom Denis Shapovalov. Like the majority of Yonex polys, Poly