Types of Strings
Natural gut: made from intestines, generally cow intestines. It has excellent elasticity and maintains tension very well. It is extremely sensitive and has great spin and control capacity. Although it is the queen of the strings in terms of its characteristics, it has some disadvantages such as price, it is very expensive, it does not last long and it is very sensitive to climatic changes, especially humidity.
Multifilament: it is a synthetic string, formed by the union of individual nylon filaments (5000 filaments form the Kirschbaum Touch Multifibre). It is the string that most closely resembles natural gut in terms of performance, with the difference that it is more economical and is not affected by humidity.
Nylon/Synthetic Gut: is a very flexible string, which maintains tension very well, the most popular of all. It can be formed by a single filament, or by a hard core and surrounding it several individual filaments. Its price is very accessible, and it is recommended for weekend players.
Polyester: these strings appeared about 25 years ago, with the aim of giving professional players a string that allows them to finish a match without having to change racquets. They stand out for their durability and are designed for players who have a lot of power in their strokes.
Co-polyester: these are the strings of the moment for professionals, they are more stable materials than polyester, they maintain better the tension extending the useful life. They are more sensitive and flexible than polyester and give a greater feeling of comfort. There are smooth, textured, octagonal, monofilaments or multi.