TYPES OF
TENNIS STRINGS.KNOW WHAT
TO COMPARE.

READ THE
CONSTRUCTION.

Natural gut uses animal-derived fibers. It is a different material family from synthetic strings.

Synthetic gut commonly describes a nylon string with a solid core and outer wraps. It is synthetic, despite the word “gut” in its name.

Multifilament describes a construction made from many smaller filaments rather than a single solid core. Nylon is commonly used, but construction and material are separate details to check on the label.

Polyester identifies a synthetic material. Many polyester strings use a monofilament construction. Read the individual product specification rather than assuming that every string with a round or shaped profile is polyester.

These are general categories, not a material classification of the POPENGO lineup. The ITF’s strings guide explains the distinction between materials and filament construction.

FIND YOUR
STARTING POINT.

When searching for the best tennis strings, start with what you want to compare: feel, response, durability, budget or your current setup. A single ranking cannot tell you how a string will feel in your racquet. The USTA’s selection guide emphasizes trying strings and assessing your own experience.

Record your current setup. Keep the string name, diameter, racquet and stringing tension together. This gives you a reference when discussing a change with your stringer. Understand tennis string tension.

Read the diameter separately. Gauge means thickness. Compare the stated millimeter value as well as any numbered gauge label. Read the tennis string gauge guide.

Decide what goes in the mains and crosses. A full bed uses the same string in both directions; a hybrid combines different strings. Mains are vertical and crosses are horizontal. Compare CHAOS and CRUSH.

Check the individual product and racquet guidance. Material, pack length, price and stringing instructions are separate from the string’s name or color. Confirm the information you need before making a purchase or changing your setup.

ONE LABEL.
ONE DETAIL.

Is a hybrid a type of material?

No. A hybrid describes a setup with different strings in the mains and crosses. The two component strings may use different materials, but the word “hybrid” alone does not specify them.

Are round and shaped strings different materials?

Round and shaped describe the string’s profile. A profile label does not establish the material or filament construction.

Does a thinner string automatically mean more spin?

A smaller millimeter value tells you the stated diameter. It does not, by itself, establish a model’s spin performance. Compare the whole string and use relevant test information or your own trial.

Which tennis string type is best for me?

Use the material and construction to understand the category, then compare the exact product, diameter and setup. Keep notes on what you like about your current strings and discuss the next comparison with your stringer.