Kumpoo JS‑65 is a 0.65 mm multifilament badminton string designed for players who want high resilience, sharp control, and a crisp hitting sound. It sits between JS‑63 (thinner, faster) and JS‑66/68 (thicker, more durable), making it a strong all‑rounder for intermediate–advanced players.

Specifications:-

• Gauge: 0.65 mm

• Type: Multifilament + braided processing

• Feel: Medium

• Material:

  • Core: Ultra high‑strength nylon

  • Outer: High‑strength nylon

• Length: 10 m

• Max tension: 45 lbs

• Recommended tension: 24–26 lbs