Tecnifibre Duramix HD 17 will provide more spin potential and a softer feel, at the expense of some durability. This string is the latest technology breakthrough in the area of comfortable polyester strings. Combining 50% polyester fibers and 50% polyamide fibers (found in Tecnifibre's softer multifilaments strings), this string provides a suprising combination of soft and crisp feel. Duramix HD 17 takes advantage of a new resin material, known as PU HD, which binds the fibers together but limits the elasticity for a firmer feel and excellent control.  The classic Tecnifibre coating SPL, Silicium Pyrogene Lubritec, provides an anti-abrasion surface for increased durability due to lessening string to string burning.  The replacement to Tecnifibre Promix, this one will provide a slightly stiffer feel due to the higher percentage of polyester fibers as well as the PU HD resin. Spin potential is decent, and the string responds well to a slight decrease in tension. A good choice both for a baseliner seeking a bit more comfort than a standard polyester, as well as an all court player seeking more durability while retaining some feel.

Construction: Polyester / Polyamide Multifilament

Color: Natural

Gauge: 1.25 mm / 17g

Length: 12.2 m / 40 ft

For more information on strings, see our following blog posts:

Tecnifibre’s new Polyester String: The Ice Code Cometh

The Future is Hybrids: Top Hybrid String Choices

Need help selecting a string? Check out our Choosing The Right Tennis String guide for more assistance.