Luxilon 4G Tennis String Luxilon 4G represents the fourth generation of Luxilon's polyester technology — an evolution of the ALU Power formula that delivers exceptional tension maintenance, a firm and precise control response, and the kind of string bed stability that aggressive baseline players need to perform consistently across back-to-back matches, tournament weeks, and heavy training blocks. Where classic ALU Power is the benchmark for pure control performance, 4G extends the playability window by maintaining its characteristic feel for longer, making it the choice for players who want ALU Power-level directional precision with superior tension retention built in to support competitive schedules where frequent restrings aren't always practical. Fourth-Generation Tension Maintenance - 4G's primary advancement over classic ALU Power is its exceptional ability to hold string bed stiffness and feel consistency over an extended playability window — the string bed maintains its characteristic control response across more sessions, rallies, and match hours before tension drop creates the inconsistency that forces a restring in less advanced poly constructions. Firm Polyester Control Response - The stiff, control-oriented co-poly construction keeps launch angles flat and penetrating on groundstrokes and serves, giving aggressive players the confident ability to swing fully through the ball and trust the string bed to keep it in court — the control-first character that defines Luxilon's string philosophy across its premium product lines. Spin-Friendly Slick Surface - 4G's smooth, low-friction surface enables fast string snapback after contact, loading the ball with topspin rotation on groundstrokes and kick serves — the mechanical spin generation that modern baseline players depend on to keep heavy, pace-loaded rally balls bending back inside the baseline under full swing speed. Consistent Response Across Multiple Sessions - The combination of 4G's advanced co-poly compound and excellent tension retention means the string plays more consistently from session to session, giving players a familiar, reliable feel on the first day with fresh strings and far into the string's lifespan rather than the rapid drop in stiffness and feel that less advanced strings deliver. Tour-Caliber Directional Accuracy - Like all premium Luxilon co-polys, 4G delivers a predictable, stable string bed that supports precise directional targeting — making it effective for players who attack small windows on passing shots, returns, and aggressive approach patterns where placement accuracy matters as much as pace. Durable Monofilament Construction - The co-poly monofilament structure resists notching and abrasion through high-frequency hitting, maintaining the string's structural integrity and performance character longer than less durable string types under the aggressive, spin-heavy hitting demands of competitive polyester string use.
