If you’re new to freediving, one of the pieces of gear you’ll need is freediving fins. With so many materials, blade lengths, and price ranges available, choosing the right pair can be confusing. This beginner-friendly guide will help you understand how to choose long freediving fins so you can make the right investment from the start.
Why Choosing the Right Freediving Fins Matters
Many beginners buy fins that are too stiff, too soft, or don’t fit correctly. Others spend a lot of money on high-end fins that don’t match their skill level or diving goals.
Because freediving relies on a single breath, the right fins help you:
Improve efficiency and propulsion,
Conserve oxygen,
Reduce leg fatigue and lactic acid buildup,
Maintain a comfortable, controlled descent and ascent
Choosing fins that match your body, strength, and diving style makes a huge difference in your overall performance.
Freediving Fins Materials: Plastic vs Fiberglass vs Carbon Fiber?
When shopping for long fins, you’ll typically find three main materials. Each offers different benefits depending on your diving needs.
1. Plastic Freediving Fins
A budget-friendly and durable option for beginners.
Pros: Affordable, tough, great for starting out
Cons: Heavier, weakest propulsion, less responsive
2. Fiberglass Freediving Fins
A step up in performance with better rebound and flexibility.
Pros: Lighter than plastic, great elasticity, beautiful translucent colors
Best for: Recreational divers, fun dives, underwater photography
Cons: Slightly heavier and less responsive than carbon
3. Carbon Fiber Freediving Fins
The top choice for high performance and efficiency.
Pros: Ultra-lightweight, fastest rebound, strongest propulsion
Best for: Intermediate to advanced divers, or beginners aiming to progress
Cons: Higher price, needs careful handling to avoid puncture or impact damage
Which Prussian Blue Carbon Fins Should You Choose? (PB-81 / PB-75 / PB-X1)
If you’re considering upgrading to carbon fiber long fins, Prussian Blue offers three distinct models designed for different performance needs.
PB-81 – Classic Entry Carbon Fins
The original Prussian Blue carbon model—durable, reliable, and great for divers entering carbon fins for the first time.
PB-75 – Optimized for Asian Divers
Redesigned with a blade length suited for Asian body mechanics, plus upgraded high-rigidity carbon layers.
Result: Faster, sharper rebound with noticeably improved responsiveness.
PB-X1 – Lightweight High-Performance Model
An advanced evolution of PB-75 featuring multi-directional carbon layers and a reinforced central structure.
Result: Lighter weight, stronger torsional resistance, and the best efficiency in the lineup.
If you are searching for lightweight carbon fins with powerful propulsion, PB-X1 is the top choice.
How to Choose the Right Blade Stiffness?
Blade stiffness greatly affects how efficiently you kick underwater.
Prussian Blue fins come in 3–4 stiffness levels depending on the model.
For the most accurate recommendation, check each model’s stiffness chart.
How to Choose the Right Footpocket for Freediving Fins?
A proper fin setup starts with the footpocket. Unlike regular shoes, a snug footpocket gives you better power transfer and control.
We offer three footpocket brands to accommodate different foot shapes.
The evolution of Prussian Blue X1 Foot Pocket
Our most recommended option, exclusively developed by Prussian Blue.
Features:
Soft, flexible material
The lightest foot pocket available
Positive buoyancy
Compatible with adjustable inner pads (thick or thin) for a custom fit
If you need a perfectly tailored fit, X1 foot pockets offer the best adjustability and comfort.
