Yonex AC139EX Twin Wave Grap Overgrip . Yellow

The Yonex Twin Wave Grap (AC139EX) in Yellow is a hybrid performance overgrip engineered with a dual-layer rubber strip running along its center underneath a tacky, perforated polyurethane outer layer. Wrapping it creates a raised spiral wave ridge that enhances finger lock and tactile feedback.

Performance Profile

1. Contour & Traction: 10/10 — The twin rubber inner strip forms distinct cushioned ridges that create deep finger grooves, maximizing mechanical hold without requiring a tight hand squeeze.
2. Absorbency & Airflow: 9/10 — Precision surface perforations allow sweat to drain into the underlying channels while maintaining air circulation beneath the palm.
3. Tackiness & Security: 9/10 — The high-tack PU coating combined with the wave profile prevents handle slippage during high-speed drives and heavy smashes.
4. Cushioning & Feedback: 8.5/10 — Ranging from 0.65 mm to 2.6 mm at the peak of the wave ridge, it provides extra shock absorption without completely masking bevel feel.

Best Suited For

1. Players Seeking Ergonomic Finger Lock: Excellent for athletes who struggle with flat overgrips slipping during quick finger-position changes.
2. Heavy Sweaters: The combination of surface perforations and ridge channels moves sweat away from main contact points.
3. Players Wanting Extra Handle Thickness: Ideal for slightly building up grip size while adding a contoured texture.
4. High-Visibility Styling: The vibrant yellow shade adds a bold, energetic accent to match or contrast your racquet cosmetics.

Specifications

• Model Code: AC139EX / AC139.
• Color: Yellow.
• Width: 28 mm.
• Length: 1,020 mm.
• Thickness: 0.65 mm (base) – 2.6 mm (ridge peak).
• Quantity: 1 Overgrip + finishing tape.
• Material: Polyurethane (PU), Natural Rubber Center Strip.