FCS Knubster Centre Keel Fin Size:O/S Combined with full foot support

Combined with full foot support and a cushioned midsole made using 50% biobased EVA foam partially derived from plants

The Performance Glass materials also makes this set a great option for bigger

Due to the nature of its design

Use with additional Twinzer fins

685" / 119 mm   BASE: 6

FCS Knubster Centre Keel Fin Size:O/S Combined with full foot supportDeveloped by Sean Mattison for Von Sol surfboards, the FCS VS KNUBSTER is essentially a centre fin that can be added to any quad set up.? The fin will increase drive and provide directional control through turns, without sacrificing speed, flow, or the freedom of movement typically associated with a quad.