Tecnifibre X-One Biphase - Red - String Set onix which reduces stress on tendons

which reduces stress on tendons and muscles

The string pattern has also also been made more open (now 16x18) which would further enlarge the sweet spot for more consistent comfort as well as bringing easier access to spin

Available in one size

but that is only part of the story

more support and less pressure on feet for a more comfortable game

Tecnifibre X-One Biphase - Red - String Set onix which reduces stress on tendonsStand out with cool red strings in a high quality string. According to Tecnifibre, the X One Biphase string uses High Heat Capacity (H2C) fibers, which allows the use of an innovative chemical treatment process called Trimerization. This new process increases the cohesion between chemical molecule links through extreme variations in temperature to result in ultimate dynamic efficiency (power) and exceptional feel. The new patented Biphasic process,