With NXT Soft Tennis String, Wilson improves on the incredibly popular NXT formula. NXT Soft features softer fibers with elongated filaments to generate more power and provide excellent shock absorption, this string dials up the comfort without compromising feel. Compared with NXT original, NXT Soft has 30% more elongation for increased ball dwell time on strings. With a 26% increase in filaments over NXT, Soft will provide even more power. NXT Soft absorbs 9% more shock than original NXT and the string is the perfect solution to soften a stiffer racquet.