FRK Plus Ibolic related 2925 ci fishbeard c7 complete "This fin allows you to With over 70 years "This fin allows you to gain start up drive and acceleration really quickly Thermo Long Sleeve Crew by O'Neill can be word either as an internal extra for under your wetsuit in winter It has all the original on wave benefits of the original FRK with a touch more release through turns that come from the squash tail and minor adjustments to how the concaves and fin placements relate to the increased surface area of the squash when compared to a round tail The feedback on this shape has been that it has a super quick rail to rail responsiveness mixed with extremely good drive and release