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.
Manera Seafarer Women's Front Zip Wetsuit 5.3mm
$320.00
Manera Seafarer Women's Back Zip Wetsuit 5.3mm
Manera Seafarer Full Zip Wetsuit 5.3mm
Manera X10D Meteor Front Zip Wetsuit 4/3mm
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Futures F6 Alpha Thruster Fins
$65.00
Futures Fiberglass K2 Keel Twin Fins
$105.00