Tecnifibre NRG 2 Tennis String

The NRG 2 is widely considered one of the best synthetic alternatives to natural gut. It utilizes a polyurethane matrix and micro-composite filaments to replicate the soft, responsive feel and lively bounce of gut at a more accessible price point.

Yes, this is an excellent option for players dealing with arm issues. Its multifilament construction is designed to be soft and arm-friendly, effectively absorbing shock and reducing the harsh vibrations often associated with stiffer polyester strings.

Because it is a soft multifilament, it can fray or break quickly if you are a heavy topspin hitter. To extend its lifespan, consider using it in a hybrid setup, pairing the NRG 2 in the crosses with a more durable polyester string in the mains.

The 16G (1.3 mm) gauge is a standard thickness that offers a balanced blend of durability and playability. If you prefer more feel and spin potential, you might look for a thinner gauge, though it will sacrifice some longevity.

While the NRG 2 excels in power and comfort, it is not a dedicated control string like a monofilament polyester. If you rely heavily on extreme spin and high-swing speeds for control, you may find it lacks the 'bite' you need, though it offers superior touch for volleys and finesse shots.