Loop's Cross SX series is their next generation addition to the Cross S family of fly rods. These fast action rods are carefully designed and tested over a two year period to provide a proven combination of proprietary nano-resin and high tensile carbon – called the Cross Core Technology System. This construction fine tunes the material combination creating a fusion of strength, power and pinpoint accuracy. Loop's world-renowned designers and pro team members tested each model around the globe against multiple species, in a wide range of climates and fishing conditions. This is really the ultimate fast action fly rod.