FCS II Compatibility Infills are designed to fill the gap between the front tab of the original (dual tab) FCS fin and the front of the FCS II plug front slot. These unobtrusive 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.

Exclusively for the FCS II Fin System

Will not fit in the traditional FCS Dual Plug System

The FCS II system has been designed to perform at the highest level by seamlessly connecting 3 essential elements in surfing; the surfer, the surfboard and the fins. When paired with fins from the new FCS II Essential Series, it’s now possible to install and remove your fins in seconds, without the need for any screws or tools. What you'll find when you ride the new FCS II system is more speed, more drive, more acceleration, and most importantly more response from your board. This equates to better surfing, and you'll be in the line up faster.