RazorCode is Tecnifibre’s stiffest polyester string and is developed for top players looking for a firm bite on the ball, great spin and excellent durability. It is the string of choice for ATP #2 (May 2021) Daniil Medvedev and WTA #15 (May 2021) Iga Swiatek. All Tecnifibre ...RazorCode is Tecnifibre’s stiffest polyester string and is developed for top players looking for a firm bite on the ball, great spin and excellent durability.
It is the string of choice for ATP #2 (May 2021) Daniil Medvedev and WTA #15 (May 2021) Iga Swiatek. All Tecnifibre polyester strings use Thermocore technology, a heating and cooling process during the production phase to provide added flexibility to polyester strings for added comfort. Through this technology, Tecnifibre makes the softest polyester strings on the market.