419Fish 5'9" sale Thermotech fins do not have

Thermotech fins do not have the traditional plastic feel of a composite fin

There's only one way to find out

and also on the bottom in the middle of the board

Recommended for performance board with deep concaves and moderate-to-extreme rocker

Bottom of the board is nice and clean

419Fish 5'9" sale Thermotech fins do not haveCondition: Excellent condition, mild deck pressures underfoot from normal use. Description: The 419Fish is Rustys update for a classic fish. The flat deck combined with angular rails allows this fish to have incredible performance. The bottom features a light convex entry that transitions into a moderate single concave through the midsection and finishes with a bit of vee off the corners. The low entry rocker stays relaxed through the entire length of