X-One
Love that string!!
Item is returnable, but does not qualify for free returns.
Tecnifibre X-One Biphase 17 is Tecnifibre's flagship playability tennis string, and for good reason. With plenty of technology packed in for maximum power, feel and comfort, this string is even a great choice if you suffer from arm pain. The 17 gauge is even thinner for increased feel on those touch shots.
Love that string!!
Long time user. Great strings!
Nice playable string and it plays better after second time playing with it. Freshly strung racquet might not play as soft as you expect! I cannot talk about durability since I only played with it 4 times with an injured wrist. I use it on ProKennex Black Ace 300 at 45 lbs and my wrist feels ok.
Now It is my favorite multifillement string .
Practice, match play