Polyester vs Multifilament Strings
Polyester vs Multifilament Tennis Strings: Which One Should You Use?
The choice between polyester and multifilament strings comes down to what you need more: control and durability, or comfort and easy power. Natural gut is the premium reference that both are measured against.
Polyester: control and durability
Synthetic strings are made mainly from nylon, polyester or Kevlar, as a single solid strand or from hundreds of fine filaments. Polyester is usually a monofilament, a single strand. Babolat describes monofilament strings as offering durability, spin potential and ball control, and Yonex makes polyester strings for a range of swing speeds.
A polyester string bed feels firm and stable. The strings slide and snap back after contact, which helps players who hit with heavy topspin, and they are hard to break. The downside is comfort: polyester is stiff, and it loses tension relatively quickly, so it goes "dead" before it snaps.
Multifilament: comfort and easy power
Multifilament strings are built from many small fibres bundled together; Babolat describes its multifilaments as made of polyamide. Tecnifibre, which says it invented the multifilament string to improve comfort and power, quotes much higher elasticity for its bonded construction. The result is a softer string bed that returns more energy to the ball with less effort.
That suits players with a shorter or slower swing, players returning from arm problems, and anyone who wants a more forgiving feel. Multifilaments wear faster than polyester, especially for big hitters, and they fray before they break.
Natural gut goes further. Babolat, which has made it for more than 145 years, says gut offers the best feel and comfort of any string and holds tension well. It is also the most expensive option.
How to choose
- You break strings often and hit big topspin: polyester, or a polyester main with a softer cross.
- Your arm hurts, or you want easy depth: multifilament or natural gut.
- You want both: a hybrid, usually polyester mains for control with multifilament or gut crosses for comfort.
String choice is personal, and tension matters as much as material. Ask a stringer to note what they used, so you can change one thing at a time.
This guide is general information. Clubs, tournaments and manufacturers set their own rules and change them; check the official source named in the text.
