C4 S-990 FireStone Fins – high-performance carbon fins for spearfishing
C4 S-990 FireStone fins are premium carbon spearfishing fins, specifically designed for open-water diving, underwater hunting, and dynamic freediving. Made with durable HT15 carbon and a hydrodynamic structure, FireStone delivers powerful thrust and fast underwater response.
Key features
- Blade made from high-quality HT15 carbon, lightweight yet highly durable — ideal for spearfishing and deep diving. The blade features a dovetail tip and is available in three stiffness options: soft (25), medium (30), and hard (40).
- Foot pocket model 200 with a soft thermoplastic upper, providing a comfortable, snug fit and optimal power transfer while finning.
- Progressive overmoulded water rails in red help stabilize water flow, increase thrust, and reduce turbulence during dives.
- Distinctive black-and-red color scheme with a dynamic design, making the fins instantly recognizable as a C4 Carbon product.
Performance advantages
– The HT15 carbon blade delivers strong propulsion and high efficiency when spearfishing or diving deep in various water conditions.
– The 200 foot pocket offers a secure and comfortable fit, suitable for a wide range of foot sizes and helping to reduce fatigue during long dives.
– Integrated water rail design enhances swimming efficiency, especially when powerful kicks are required at higher speeds.
Conclusion
If you are looking for high-performance spearfishing fins that are durable, responsive, and versatile, C4 S-990 FireStone is a worthy choice. With a powerful carbon blade, comfortable foot pocket, and thrust-optimized design, these fins are the perfect companion for every spearfishing and freediving session.
