Brand NEW! NXT Power features high crystallinity Xycro Micro-Fibers bonded with polyurethane for an ideal combination of durability and explosive power upon contact. Originally labeled NXT Tour, this string's softness and comfort are about as close as it comes to natural gut. NXT Power features a 15% larger sweet spot and 80% less vibration than traditional synthetic gut string. 45% PU by volume High crystallinity Xycro Micro-Fibers Ribbon-like co-polymer core increases tensile strength and reduces tension loss 15% larger sweet spot and 80% less vibration than traditional synethetic gut string #1 rated comfort string by USRSA Racket String Category Power String Material PU String Type Multifilament - All international buyers are responsible for all tax, duties and/or customs fees.