KevlarStiffnessDurability
Why Kevlar-Type Strings Require Extra Caution
Extreme durability comes with a clear cost: very high stiffness and low elasticity.
Player overview
ITF technical guidance places Kevlar among the stiffest commonly available tennis strings.
Measurement guide
- Confirm that the user is an advanced player who genuinely breaks other materials too quickly.
- With a professional, consider a hybrid with a softer cross and a lower reference tension rather than a full bed.
- Check impact feel and any technical change immediately during a short adaptation session.
Latest measurement
Kevlar is not a universal upgrade but an extreme tool for a very specific breakage problem.
TENNIS TENSION LAB
Tension Lab: String Tension
Measure string tension, track every change, and plan your next restring.