With its multifilament construction, Tecnifibre Triax does not skimp on comfort. What separates this very arm-friendly string from the competition is that it also has higher levels of control, making it suitable to bigger hitters. Tecnifibre achieves this control partly through an innovative construction that integrates firm polyester filaments with softer polyamide (nylon) filaments. Triax also gives you the benefit of a Silicon Pyrogene Lubritec (SPL) coating, a feature that not only helps it snap back for extra spin but also gives it some protection against the frictional wear that leads to breakage.