29/71 X-Blade Carbon Fins

The 29/71 X-Blade Carbon Fins deliver unmatched performance for serious freedivers. Designed with a blend of German and Japanese aerospace-grade carbon fiber, these fins ensure superior strength, responsiveness, and durability.

To achieve this level of quality, 29/71 uses a cutting-edge Resin Infusion process. Unlike traditional Wet Layup methods, each blade stays under a 30-hour vacuum before resin is introduced. As a result, the blades become significantly lighter and mechanically stronger—without air bubbles or structural inconsistencies.

Additionally, each blade integrates 9 unique carbon layers with different weights and fiber directions. This configuration creates a dynamic flex pattern that remains soft during light finning but stiffens when you apply more power. This transition maximizes propulsion while reducing leg fatigue, especially during long ascents.

What makes the X-Blade truly stand out is its intelligent design. Instead of wasting energy, the blade responds instantly to your movement. Consequently, you move efficiently, conserve oxygen, and experience smoother dives.

You can choose between two high-performance foot pocket systems:

• The 29/71 S.1 system includes four M4 bolts that securely fasten the blades without glue. It’s ideal for travel and quick blade swaps.
• Alternatively, Cetma Composites S-Wing foot pockets offer ergonomic support with built-in silicone water rails. These enhance water flow and reduce drag for an even smoother experience.

Overall, these fins are the perfect combination of lightweight build, intelligent flex, and professional-level comfort.