The legendary Al Merrick fin template by Channel Islands Surfboards. Made in the USA.
4.38" (Small) fin size, designed with riders 135lbs and under in mind
Thruster fin set
Height: 4.38 in, 11.13 cm Base: 4.34 in, 11.02 cm Area: 13.80 sq in, 89.03 sq cm
FRP (Fiberglass reinforced polymer)
Fiberglass reinforced polymer construction takes the glass flex fin to an all new level. The polymer is injected with fiberglass to create a stiffer, more controlled, and durable fin.
Designed to enhance controlled flex and responsiveness, while providing remarkable memory and durability. Al's design creates drive from the rake and base, while allowing pivot with the narrow tips and smaller center fin.