The NRG² was designed with a special purpose in mind: to be the engine of the racket! This is the primary meaning of NRG², the most powerful string in the range.

Key Features:

• Specific Construction: More than 1200 microfilaments made of Elastyl (12% more elastic than standard polyamide). Impregnated with 400 polyurethane to generate power and comfort.
• Exclusive S.P.L Surface Treatment: Provides slip and effective snap back, so you don't have to re-string during play.
• 1.32 Gauge: Guarantees increased resistance.

Welcome to NRG²!

String made in France

Technologies:

• PU 400: 400% elasticity for great comfort and dynamic performance.
• Elastyl Fibres (100%): +12% elasticity compared to standard PA, providing enormous elasticity for maximum power.
• S.P.L Final Coating: Anti-abrasion coating for more resistance.

BEST SELLER USA

Among the top 10 best sellers for over 20 years among specialists.