Carbon Fiber Freediving Fins – Engineered for Efficiency
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Product Overview
Push your limits deeper with JCSPORTLINE’s carbon fiber freediving fins — designed for exceptional hydrodynamic performance, comfort, and control.
Built using T700-grade carbon fiber and advanced multi-angle lay-up technology, these fins deliver lightweight power and precise responsiveness with every kick.
Engineered to balance propulsion and fatigue reduction, they are ideal for both professional freedivers and enthusiasts seeking top-tier performance.
Market Pain Points
| Market Challenge | JCSPORTLINE Solution |
|---|---|
| Traditional fiberglass or plastic fins lose stiffness and power at depth | Aerospace-grade T700 carbon fiber ensures consistent thrust and flex response even under high pressure |
| One-size-fits-all designs reduce efficiency | Customizable blade stiffness and foot shape options for personalized comfort and control |
| Heavy fins cause fatigue during long dives | Optimized weight-to-strength ratio reduces drag and energy loss |
| Limited brand options for professional divers | JCSPORTLINE provides OEM/ODM customization to build your own high-end freediving line |
Key Product Highlights
- Hydrodynamic Blade Design – CFD-tested shape minimizes drag and maximizes propulsion efficiency.
- Lightweight Carbon Fiber Construction – T700 unidirectional layers deliver durability without added weight.
- Balanced Flexibility – Multi-angle lay-up ensures progressive stiffness for smooth energy transfer.
- Ergonomic Comfort – Precision foot-pocket interface for optimal comfort during extended dives.
- Custom Branding Ready – OEM/ODM options with your logo, color, and pattern for brand differentiation.
Technical Details
| Specification | Description |
|---|---|
| Material | T700 Carbon Fiber Prepreg + 3K/12K Weave |
| Process | CNC-Molded, 150 °C Autoclave Curing |
| Blade Length | 700 – 800 mm (Customizable) |
| Hardness Options | Soft / Medium / Hard |
| Surface Finish | Gloss or Matte UV-Protective Clear Coat |
| Standards | ISO 20653 / ASTM D3039 |
| Weight | Approx. 480 g per fin |
| Packaging | Custom OEM / ODM Branding Available |
FAQ
Q1: What makes JCSPORTLINE freediving fins more efficient than standard ones?
Our fins use T700 carbon fiber and CFD-tested geometry to achieve higher thrust with lower drag, giving you more distance per kick.
Q2: Can I choose the blade stiffness?
Yes — available in Soft, Medium, and Hard to match your diving style and strength level.
Q3: Are these fins suitable for both pool training and deep diving?
Absolutely. The design balances flexibility and power, performing equally well in pools and open-water environments.
Q4: Do you offer OEM or private-label production?
Yes. We provide full OEM/ODM support with logo, pattern, and packaging customization.
Q5: How do you ensure product consistency?
Each fin is precision-molded, tested under ISO and ASTM standards, and digitally tracked via MES for quality assurance.
Sectors: automotive, aerospace/marine, sports, home, medical OEM/ODM available; build to drawings/samples
Yes. With 20 years of experience, we offer customization for color, style, and dimensions, and can build to customer drawings or samples (OEM/ODM).
Incoming material hardness/performance checks; Key processes: vacuum bagging, thermal curing, wet sanding & polishing; Paint hardness testing and final quality inspection (FQC) before shipment.
Depends on the product. For single components like spoilers, the typical MOQ is 5–10 pcs; final MOQ is negotiable by vehicle model and design.
Yes. We can apply customer logos, provide OEM packaging, and deliver tailor-made design solutions.
FBA direct fulfillment and global warehousing; Protective packaging for safe transport; Courier, air freight, or sea freight arranged per customer request.
We offer a return and exchange policy for quality issues.
Our technical support team is always available to answer any questions regarding installation, maintenance, and upkeep.
Business-to-business customers can enjoy long-term partnership discounts and regular product previews.







