The Yonex Rexis 1.25 Tennis String!
Yonex builds extra comfort into this string using a highly elastic FORTIMO polyurethane. Made with an army of ultra flexible filaments, Rexis 16L delivers impressive playability to comfort and power seekers. This string's low stiffness will give you less shock on off-center contact than a typical solid core or sythnetic gut strings. In addition to being the perfect string for those who want to reduce the shock of a stiff racket, Rexis is ideal for any player who wants to add a little more power and comfort to their game.