K2 Fiberglass Keel Fin

I put these fins in my 5'3 retro fish and was blown away but the performance change. I had a more up right twin set that made the board feel too loose and out of control. I swapped them out for these, and the board felt brand new. More speed, better hold through turns and confidence in steep sections. These things do great in knee high waves, but I was pleasantly surprised by how well they worked in head high as well (surfing at softer beach break mind you). Definitely worth a buy and I think a great introduction into twins if you are new to the keel world. Best in a more traditional fish shape.