Tecnifibre NRG2 - Natural - String Set Gauge:18 Stitched pleats on front

Stitched pleats on front

Practice precision footwork at home

the new upper provides greater flexibility

the Tecnifibre TF-40 305 18M V3 delivers a controlled

Tecnifibre NRG2 - Natural - String Set Gauge:18 Stitched pleats on frontThe NRG was designed with a specific goal in mind: to be the engine of the racquet! This is the primary purpose of the NRG, the most powerful string in the range. Specific construction: Over 1200 microfilaments composed of Elastyl (12% more elastic than standard polyamide). Impregnated throughout with polyurethane 400 to generate power and comfort. Exclusive surface treatment: SPL to provide smoothness and effective "snap back", avoiding the need to