110-inch International 4A surfboard fin in blue, white and red Pro Glass
1Raked outline of an Eveley 10-inch International 4A longboard center fin
Machined Pro Glass finish on blue, white and red International 4A surfboard fin
110-inch International 4A surfboard fin in blue, white and red Pro Glass
1Raked outline of an Eveley 10-inch International 4A longboard center fin
Machined Pro Glass finish on blue, white and red International 4A surfboard fin

10" International 4A Center Fin in blue on white on red Pro Glass.

$99.00
Only 2 left in stock

Timeless 10-inch surfboard fin performance with smooth drive, flowing turns and dependable longboard control.

These surfboard fins combine the proven International 4A outline with solid Pro Glass construction for balanced hold, flex and responsive longboard surfing.

Choose this fin when you want:

  • Smooth, drawn-out turns and clean rail-to-rail transitions

  • Reliable drive from a substantial base

  • Moderate flex that responds through turns

  • Enough hold for noseriding without the stiffness of a dedicated pivot fin

  • One versatile center fin for trimming, carving and traditional longboard surfing

Best suited to:

  • Traditional and performance longboards

  • Single-fin longboards

  • Suitable 2+1 longboards requiring a larger center fin

  • Small peeling waves through to shoulder-high surf

  • Surfers wanting a balance of glide, hold and manoeuvrability

Technical Specs

This is a single 10-inch center fin for longboards. It uses the classic International 4A shape, with a swept-back outline and tapered tip that help the board turn smoothly while maintaining drive and stability.

The fin is made from solid Pro Glass fiberglass and has a clean machined finish. Its moderate flex provides a balanced feel—responsive through turns without becoming too loose.

The blue, white and red fin fits a standard sliding center fin box. It can be used as the only fin on a single-fin longboard or as the center fin in a compatible 2+1 setup.

A center-fin screw and plate are included.

Stock is dispatched from Sydney, with free insured delivery throughout Australia.

The broad base supplies drive and stability, while the raked outline encourages smooth carving turns and flowing transitions. Its tapered tip and moderate flex provide a lively response without making the board feel loose or unpredictable.

This makes the 10" International 4A a dependable choice for surfers who want traditional trim and noseriding control while retaining enough responsiveness for everyday turning.

Eveley Surfboard Fin Knowledge Hub

Learn more about selecting, installing and tuning longboard fins:

Timeless 10-inch surfboard fin performance with smooth drive, flowing turns and dependable longboard control.

These surfboard fins combine the proven International 4A outline with solid Pro Glass construction for balanced hold, flex and responsive longboard surfing.

Choose this fin when you want:

  • Smooth, drawn-out turns and clean rail-to-rail transitions

  • Reliable drive from a substantial base

  • Moderate flex that responds through turns

  • Enough hold for noseriding without the stiffness of a dedicated pivot fin

  • One versatile center fin for trimming, carving and traditional longboard surfing

Best suited to:

  • Traditional and performance longboards

  • Single-fin longboards

  • Suitable 2+1 longboards requiring a larger center fin

  • Small peeling waves through to shoulder-high surf

  • Surfers wanting a balance of glide, hold and manoeuvrability

Technical Specs

This is a single 10-inch center fin for longboards. It uses the classic International 4A shape, with a swept-back outline and tapered tip that help the board turn smoothly while maintaining drive and stability.

The fin is made from solid Pro Glass fiberglass and has a clean machined finish. Its moderate flex provides a balanced feel—responsive through turns without becoming too loose.

The blue, white and red fin fits a standard sliding center fin box. It can be used as the only fin on a single-fin longboard or as the center fin in a compatible 2+1 setup.

A center-fin screw and plate are included.

Stock is dispatched from Sydney, with free insured delivery throughout Australia.

The broad base supplies drive and stability, while the raked outline encourages smooth carving turns and flowing transitions. Its tapered tip and moderate flex provide a lively response without making the board feel loose or unpredictable.

This makes the 10" International 4A a dependable choice for surfers who want traditional trim and noseriding control while retaining enough responsiveness for everyday turning.

Eveley Surfboard Fin Knowledge Hub

Learn more about selecting, installing and tuning longboard fins:

Depth 10”

A timeless shape considered an icon in fin design, with enough base for drive while the tapered tip promotes a lively response.

This solid fiberglass center fin with a machined finish is supplied complete with the screw and plate for secure fitting.

Here’s some great things about the International 4A fin:

✅ 1. Classic and Timeless Design

  • Originally designed by George Greenough, the 4A has been a staple for decades.

  • Its template blends performance and smooth flow, making it ideal for traditional longboarding.

✅ 2. Great for Turns and Flow

  • The swept-back rake offers smooth, arcing turns.

  • It provides predictable, fluid rail-to-rail transitions, perfect for trim and carving.

✅ 3. Balanced Flex

  • The International 4A has a moderate flex, which helps generate speed out of turns.

  • Offers some spring without being too loose or floppy.

✅ 4. Versatile Performance

  • Works well in a wide range of conditions – from small, peeling waves to shoulder-high surf.

  • Can be used in logs, performance longboards, or even mid-lengths depending on the size.

✅ 6. Widely Loved

  • Highly recommended by surfers across generations.

✅ 7. Ideal for Both Nose Riding and Carving

  • Offers a good middle ground — enough hold for noserides but loose enough for stylish turns.

  • Not overly stiff like pivot fins, nor overly loose like flex fins.

If you're building a single-fin quiver or looking to upgrade a longboard setup, the International 4A is a go-to fin for a reason: it just works. Whether you’re cross-stepping, trimming, or drawing stylish lines, the International 4A gives you the confidence and feel to do it all.

We include

Free Delivery: Everywhere in Australia.

Tracking: Quick & easy online tracking on all fins. 

Peace of Mind: All our fins are insured against loss in transit.

Prompt Australian Dispatch: All items are sent from stock held in Sydney on the same or next business day.

Returns: 30-day, no questions asked returns, for unused full price items.

No More to Pay: No surcharges added at the checkout.