TENNIS STRING
GAUGE.READ THE mm.

GAUGE IS
THICKNESS.

Tennis string gauge refers to string thickness. A diameter written as 1.20 mm is a measurement in millimeters. On POPENGO pages, the exact diameter sits alongside each model so the available options are explicit.

A numbered gauge label is another way strings can be described. The ITF’s guide shows that gauge labels can cover ranges of diameters. When comparing labels across strings, check the stated mm measurement as well.

POPENGO lists its options in millimeters. WAVE has 1.20 mm and 1.23 mm options. PULSE and PUNCH each have 1.20 mm and 1.25 mm options.

KEEP THE
DECIMALS.

The decimal values are part of the specification. WAVE’s second option is 1.23 mm. PULSE and PUNCH each list 1.25 mm as their second option. Keep those values attached to the correct model.

A smaller mm value describes a smaller stated diameter. For example, 1.20 mm is thinner than 1.25 mm. That measurement alone does not describe the full string: model, profile and feel remain separate information.

With hybrid tennis strings, read two measurements. WAVE 1.23 + PUNCH 1.25 mm gives the diameter of each named component. A single diameter would leave out part of the pairing.

READ THE
WHOLE STRING.

Use the diameter to identify the option, then read the model’s profile and string color. A soft shaped WAVE, soft round PULSE and firm round PUNCH each have their own description even when the stated diameter is the same.

POPENGO is coming soon. Compare the tennis string lineup to preview a model and diameter selection.