Wilson NXT Tennis String Reel - Natural Gender-Varity and has a nice tacky

and has a nice tacky feel

and Juan Martin Del Potro

The thin straps meet at the centre back providing an x-shape strap detail

3U: 21 - 29 lbs

Wilson NXT Tennis String Reel - Natural Gender-Varity and has a nice tackyFeaturing proprietary xycro microfibers impregnated with PU for enhanced comfort and power, 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, handly gently and avoid over clamping and crimping. Features 35% PU by volume X bonded core increases tension maintenance and power 10% larger