What Is Tennis Racket String Made Of?

If you’re a tennis player, you know that having the right racket string can make a big difference in your game. But have you ever wondered what racket string is made of? In this blog post, we’ll take a look at the materials that go into making tennis racket string, and how they affect your game.


In the game of tennis, the ball can travel at speeds of up to 150 miles per hour. With all that speed and power, it’s no wonder that the right racket string is so important. After all, it’s the only thing connecting your racket to the ball!

There are many different types of tennis racket strings available on the market today. They are made from a variety of materials, including natural gut, synthetic gut, kevlar, and others. Each type of string has its own unique properties and benefits.

Natural gut strings are made from cow intestines. They have excellent elasticity and durability, but they are also one of the most expensive types of strings available. Synthetic gut strings are made from a variety of synthetic materials. They offer good playability and durability, but they don’t have the same level of elasticity as natural gut strings. Kevlar strings are made from a high-strength synthetic material called Kevlar. They are very strong and durable, but they can be difficult to control.

Types of Tennis Racket String

There are a few different types of tennis racket string available on the market, each with their own benefits. The most common type of string is nylon, which is known for its durability. However, nylon strings can also be quite stiff, which may not be ideal for everyone. There are also synthetic gut strings, which are made of a synthetic material and offer a good mix of durability and playability. Finally, there are natural gut strings, which are made from the intestines of cows and other animals. These strings are the most expensive, but they offer the best playability.

Natural Gut

Natural gut string is composed of cow intestine and has been used in tennis for over a century. It is widely regarded as the best possible option for racket strings, as it provides excellent feel and playability. However, it is also the most expensive type of string, and it loses its tension relatively quickly. As a result, professional players typically use natural gut strings only in their competition rackets.

Synthetic Gut

Synthetic Gut is the most popular type of tennis racket string. It is made from a variety of synthetic materials, including nylon, polyester, and Kevlar. Synthetic Gut strings are very durable and offer good power and control. They are also very affordable, making them a great option for beginner and intermediate players.


Polyester is the most popular type of string among professional players. It offers great durability and spin potential, while also being one of the cheaper options. Polyester strings are often made with thicker gauges (1.25mm 1.30mm) to offer more durability. If you are a hard-hitting player who tends to break strings often, then a polyester string might be a good option for you.

But because polyester is less elastic than other string materials, it can cause greater arm discomfort. If you have arm issues or are looking for a more “forgiving” string, then you might want to try one of the following options.


Kevlar is a high-strength synthetic fiber. It’s used in bulletproof vests, Composite aircraft structures and racecar tires. As a racket string, it provides great durability but less power and feel than natural gut. It also loses its tension quickly.

How Tennis Racket String Is Made

Tennis racket string is made of natural gut, synthetic gut, or a combination of the two. Natural gut is made from the intestines of sheep and cows, while synthetic gut is made from synthetic materials. The string is then woven into a mesh that is used to create the racket’s strings.

Natural Gut

Natural gut is made from cow intestines and is by far the most popular type of string. It’s used by professionals because it provides the best feel, power and control. But it also comes at a price —Natural gut is the most expensive type of string, and it doesn’t last as long as synthetic strings.

Synthetic Gut
Synthetic gut is made from a variety of materials, including nylon, polyester, Kevlar and fluorocarbon. It’s designed to provide a good blend of feel, power and control, and it’s more durable than natural gut. Synthetic gut is the most popular type of string for recreational players.

Multifilament strings are made from a bundle of very thin strands of synthetic fibers. They are designed to provide excellent feel and playability while also being durable. Multifilament strings are often used as a hybrid with another type of string to provide the best possible blend of feel, power and control.

Co-poly strings are made from a blend of two different types of synthetic fibers — typically nylon and polyester. They are designed for players who want more control than they can get from a multifilament string but still want a fairly soft feel. Co-poly strings often have a high friction surface that can help generate spin on the ball.

Synthetic Gut

The vast majority of tennis racket string is made from nylon, a synthetic polymer. Nylon was first developed in the 1930s and was used as a substitute for silk in ladies’ stockings. It wasn’t until the 1950s that it was first used as tennis racket string.

Nylon is a strong, durable material that is resistant to both tension and wear. It has excellent elasticity, which allows it to snap back into shape after being stretched. This makes it an ideal material for tennis racket string, as it can withstand the repeated impacts of the ball hitting the strings.

Nylon is also a relatively cheap material to produce, which makes it more affordable for consumers. However, its main disadvantage is that it lacks some of the “feel” and “touch” of natural gut string. This means that professional players often prefer to use natural gut string, even though it is more expensive.


Polyester is a synthetic polymer that can be produced in a variety of ways. In tennis racket strings, it is usually made from high-density polyethylene terephthalate (PET), which is a plastic derived from crude oil. The PET is melted and extruded into filaments, which are then woven into a string.

Polyester has several advantages as a racket string material. It is very strong and durable, meaning it can withstand the rigors of the game without breaking. It also has excellent tension retention properties, meaning it will not stretch or deform over time. This makes polyester an ideal choice for players who like to keep their strings at a consistent tension.

The main disadvantage of polyester is that it is not as sensitive to the ball as natural gut strings. This means that it does not offer as much feel and control as gut, making it less popular among advanced players. However, many manufacturers have developed hybrid strings that combine polyester with other materials such as Kevlar or natural gut to try to overcome this drawback.


One of the most common questions we get asked is “What is tennis racket string made of?” The answer, unfortunately, is not as straight forward as it might first seem. There are a variety of materials that can be used to make racket strings, and each has its own unique set of benefits and drawbacks. In this article, we’ll take a look at some of the most popular materials used in tennis racket strings and help you understand what sets them apart.

One of the most popular string materials on the market today is Kevlar. Kevlar is an extremely strong synthetic fiber that was originally developed for use in bullet-proof vests. It’s also been used in a variety of other applications where high strength and low weight are required, such as in racecar tires and sailboat hulls. When it comes to tennis racket strings, Kevlar offers a number of advantages. Firstly, it’s one of the strongest string materials available, meaning it’s less likely to break during play. It also has very low elasticity, meaning it will hold its tension well over time. This makes Kevlar an excellent choice for players who are looking for a durable string that will maintain its performance for a long time.

However, there are also some drawbacks to using Kevlar in tennis racket strings. One of the biggest is that Kevlar is extremely stiff, meaning it can be hard on your arm and increase your risk of developing tennis elbow. It also doesn’t have a very good “feel” when hitting the ball, meaning you may not have as much control over your shots as you would with a softer string material.


The answer to the question “What is tennis racket string made of?” is that it is typically made of a synthetic material, such as nylon, polyester, or Kevlar. The choice of material can have a significant impact on the performance of the racket, as well as the strings’ durability.

Similar Posts