Solinco Outlast and Pro Stacked Tennis String

Main : Outlast 22.3 feet / 6.8 meters Cross : Pro Stacked 20.7 feet / 6.3 meters Outlast: A newly developed, high-performance and well-rounded polyester string designed to provide maximum durability and all-court playability. Utilizes an innovative high-powered polyester monofilament fiber designed and shaped to provide exceptional durability and unparalleled Playability. Pro-stacked : An enhanced, high-performance synthetic gut string offering unbeatable all-around playability with added feel and durability. Features a newly developed central power-core encapsulated by high-performance, responsive multifibers to offer a versatile combination for all-court play.