29/71 Black Carbon Fins

The 29/71 Black Carbon Fins are designed for serious freedivers seeking power, precision, and innovation. Crafted from a fusion of German and Japanese aerospace-grade carbon fiber, these fins deliver outstanding durability and performance.

Thanks to the Resin Infusion process, each blade is compressed under vacuum for 30 hours before the resin is introduced. This process eliminates excess material and air, creating one of the lightest and strongest carbon blades available. Unlike the traditional wet lay-up method, this technique significantly improves the blade’s structural integrity.

The carbon fiber design isn’t just high-tech—it’s also visually stunning. The unique fiber printing happens before resin infusion, locking in the blade’s one-of-a-kind appearance permanently under the resin.

Each blade contains 9 carefully layered carbon sheets, varying in weight and direction. This layering provides a variable flex profile, making kicks soft during minimal effort, and increasingly stiff as more power is applied. As a result, you get maximum propulsion with minimal energy loss.

You can choose between two foot pocket systems.

• The 29/71 S.1 foot pocket uses four M4 bolts to mount the blades—no glue required. This system makes it easy to travel or switch blades.
• Alternatively, opt for Cetma Composites S-Wing foot pockets, known for their ergonomic fit and integrated silicone water rails, which enhance water flow and reduce drag.

Specifications:

• Material: Aerospace-grade carbon fiber (German & Japanese origin)
• Construction: Resin Infused, 30-hour vacuum compression
• Flex Profile: 9 carbon layers for variable stiffness
• Foot Pockets: 29/71 S.1 (bolted) or Cetma S-Wing (ergonomic)
• Usage: Ideal for deep dives, training, and competition