SKU: 25330167307

FCS II Plug - Black

Sale price$9.00 Regular price$10.00
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Ships within 48 hours · Estimated delivery Jul 18 - Jul 23

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Description

FCS II Plug - Black1. Keyless Efficient keyless system for quick fin installation and release. The FCS II system requires no grub screws or keys to secure the fins to the board. Fins can be easily inserted and removed in seconds, allowing you to adapt your equipment to the conditions, on land and in the water. 2. Flush Leading Edge Recessed leading edge with flush base connection improves water flow. These features not only create a sturdy anchorage to the board, but

 

1. Keyless

Efficient keyless system for quick fin installation and release.

The FCS II system requires no grub screws or keys to secure the fins to the board.

Fins can be easily inserted and removed in seconds, allowing you to adapt your equipment to the conditions, on land and in the water.

2. Flush Leading Edge

Recessed leading edge with flush base connection improves water flow.

These features not only create a sturdy anchorage to the board, but minimize water disruption through a more flush and seamless transition between the fin and board surface.

3. Backward Compatible

 

The FCS II System is backwards compatible with all your favourite FCS dual tab Fins.
 

4 - 5. The Mechanism

Constructed using a corrosion resistant titanium tension rod, and a rotating, wear-resistant polymer barrel


When the fin is inserted into the plug the barrel interacts with a groove detail in the fin to lock it into place using a combination of downward and lateral force.


The FCS II Fin System has been tested to over 4,000 cycles (installing & then removing the fin). Under normal conditions, the FCS II system will outlast the life of the board.
 

6. Honeycomb Construction

Lightweight Composite Frame encapsulated by high density foam reduces weight and maintains flex.

 FCS II FAQ

Will the FCS II mechanism keep working over time?

The FCS II mechanism will continue to work no matter how many times you change your fins. This simple, but well refined mechanism constructed from superior materials ensures operational longevity.

FCS has completed repetition testing (installing then removing a fin from the system) with no retention force lost over 4,000 cycles. Under normal conditions, the FCS II system will outlast the life of the board.

Will fins eject out of the system unintentionally when surfing?

The FCS II system has a high fin retaining force (around 12kg/26Ibs) and fins cannot be removed from the system by placing force on the front or side of the fin (i.e. the direction of forces applied to the fin during surfing). A fin can only be removed from the system by applying an upwards force to the rear of the fin.

Will sun and salt water corrode the FCS II mechanism? And how about if sand enters the plug, will it jam?

The FCS II mechanism has been designed to operate in a highly corrosive environment. All materials used to construct the FCS II plug have been selected for their anti-corrosion properties; including titanium which is an inert material (will not rust). If sand enters the plug, the mechanism will not be restricted and will flush out the sand through the open slot cavities.

Will my old FCS (dual tab) fins work with this system?

Yes, you can use all your existing FCS fins with the FCS II system. The FCS II plugs are backwards compatible - grub screws can be used within the FCS II plugs to secure your existing dual tab FCS fins.

FCS has designed a set of unobtrusive silicone infills to fill the gap created by the old fins in the new system. The infills are made from high quality silicone rubber which will not damage the plugs or fins. They are also extremely durable, light and built to withstand extreme temperature and corrosive conditions. The infills replicate the flush leading edge of the new fin design improving the performance of the old fins.

 


 

Shipping Notes
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Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25330167307

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Georgette Campbell
Waukegan, US
★★★★★ 5
Great buy
Size: 12 Wide, Color: Black Faux Leather
I absolutely love these Amazon Essentials Belice Ballet Flats! They are so comfortable right out of the box and fit my feet perfectly. I can wear them all day without my feet hurting, which is hard to find with flats sometimes. They’re also really cute and go with almost everything I wear. I find myself reaching for them all the time because they’re both comfy and pretty. Definitely a great everyday shoe, especially for the price!
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Reviewed in the United States on May 10, 2026
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Michelle White
Battle Creek, US
★★★★★ 5
Loooove these shoes!
Size: 7.5 Wide, Color: Chestnut Brown Faux Leather
I have these in several colors, and they’ve become a true staple in my wardrobe. The Amazon Essentials Women's Belice Comfortable Slip-On Ballet Flats are exactly what I look for in an everyday shoe—simple, versatile, and comfortable right out of the box. The slip-on design makes them super convenient for busy days, and they pair effortlessly with everything from jeans to dresses to work outfits. They’re lightweight but still feel supportive enough for all-day wear, and I appreciate that they don’t require a break-in period. The fit is generally true to size, and the variety of colors makes it easy to stock up and rotate depending on the outfit. Overall, these are reliable, easy-to-wear flats that offer great value for the price. Not flashy, just consistently comfortable and practical—which is exactly why I keep coming back to them.
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Reviewed in the United States on June 5, 2026
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James E. McCampbell
Whiting, US
★★★★★ 5
Has the look that they should cost more.
Size: 11.5 Wide, Color: Dark Turquoise
Comfortable and the fit is very comfortable. Looks great and extremely comfortable. Soft and light weight. Easy to put on. Sizing was perfect and the wide width is truly a wide. I’m coming back for more colors.
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Reviewed in the United States on June 1, 2026
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Scraps
Belleville, US
★★★★★ 4
Good at price
Size: 9 Wide, Color: Sand
Fit a little small at my big toe but otherwise fit well. Heel rubbed slightly first 5 hour wear but no blister.
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Reviewed in the United States on May 9, 2026
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Lynn
Lowell, US
★★★★★ 5
Lightweight comfortable at a good price!
Size: 10.5, Color: Navy
These shoes are perfect. The color matches my navy outfits as well as my denim. They are comfortable and they look great. They are easy to pack lightweight and a great value. I am extremely satisfied and highly recommend!
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Reviewed in the United States on June 3, 2026

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