Featuring proprietary xycro microfibers impregnated with PU for enhanced comfort and power, Wilson NXT is the world’s most popular multifilament string. Sporting a larger sweet spot than traditional synthetic gut string and a fraction of its shock, NXT has stood the test of time for good reason. For installation, handle gently and avoid over-clamping and crimping. Tennis elbow sufferers looking for a softer, more comfortable string should give Wilson NXT a try.