KAP K7 SEVEN HydroGrip Water Polo Ball Size 4 — NCAA Women's Official, Water-Reactive Grip

The KAP7 HydroGrip Size 4 is the official NCAA Women's and high school girls' water polo game ball engineered for superior wet-surface grip and consistent game performance.

Built from KAP7's proprietary HydroGrip compound and precision-wound nylon carcass, this size 4 ball is specified for women's and girls' competition at local, high school and collegiate levels. Its water-reactive surface and hand-buffed finish deliver enhanced control on release and catch, while NFHS authentication and NCAA approval make it a regulation-ready choice for coaches, referees and competitive players.

How does the HydroGrip perform during fast exchanges and shots?

The HydroGrip formulates its textured surface to interact with water rather than repel it, so the ball maintains predictable flight and spin even when soaked. Hand-buffing adds tactile feedback for players, improving accuracy on passes and shots.

• Water-reactant grip that improves handling when wet
• Hand-buffed finish for better tactile control
• Consistent rebound and predictable spin for precise shooting

Is this ball approved for official competition and training?

Yes—this model meets standards for girls' and women's matches: it is the NCAA Women's official size 4 game ball and is NFHS authenticated for high school competition. That makes it suitable for game-day use, officiated events, and formal practices where regulation equipment is required.

• NCAA Women's official game ball designation
• NFHS authentication for high school play
• Designed to meet national and international specification guidelines

What construction features affect durability and feel?

The HydroGrip pairs a precision-wound nylon carcass with a resilient outer compound to balance longevity and playability. The wound core stabilizes shape under repeated impact, while the durable cover resists surface wear and preserves grip texture over time.

• Precision-wound nylon carcass for shape retention
• High-quality outer compound engineered for lasting grip
• Color options to maintain visibility and team identity

How should teams choose and care for a KAP7 HydroGrip ball?

Select size 4 for women's and girls' programs; pick a color that maximizes contrast with your pool for better visual tracking. Simple routine care—rinsing after chlorine exposure, air-drying, and storing out of direct sun—extends the life and tactile performance of the ball.

• Choose size 4 for women's/high-school girls' matches
• Rinse and air-dry after each session to protect the surface
• Store away from extreme heat or prolonged sunlight to avoid material degradation

Who is this for: coaches, referees and competitive players seeking a regulation, high-performance women's water polo ball—ideal for high school teams, college programs, and club athletes who demand dependable grip, consistent flight, and compliance with NCAA and NFHS standards.