- Highly Flexible Design for Better Maneuverability These fins are built with a high level of flexibility to improve turning and handling in the water. The flexible construction delivers a smooth, responsive ride and enhances overall control during surf sessions. - Standard Longboard Fin Box Compatibility Compatible with standard longboard fin boxes, making them suitable for a wide range of SUPs and longboards. They are easy to attach and detach, offering convenience and versatility for different water adventures. - Durable PVC Material Made from PVC material for long-lasting performance. The sturdy construction is designed to withstand river running and provides stable, controlled performance while surfing. - Color Options Available in black, yellow, and green to add a splash of color to your board. Choose the color that matches your style and stand out on the waves. Use scenarios - River runs and coastal surf: Use these fins to improve all-around stability and maneuverability, enabling quicker direction changes and better control in varying water conditions. - Cross-board versatility: Ideal for riders with multiple boards (SUPs and longboards). Easy to attach and swap between boards for different sessions or riders. - Training and progression: Use during practice to refine turns and balance. The fins’ flexibility supports smoother pivots and more predictable feedback as you develop technique.