CI Tech 1 Large - 3 Fin 30 - 31L The large base with medium

The large base with medium tip helps with powerful bottom turns and releasing the fins off the top

thus providing more spring out of turns

allowing you to get the best of both worlds

The bottom is single to double to vee out the back providing drive and forgiveness

3mm padding

CI Tech 1 Large - 3 Fin 30 - 31L The large base with mediumThe legendary Al Merrick fin template by Channel Islands Surfboards. 4. 75" (large) fin size, designed with riders 165lbs and over in mind. Thruster fin set, includes 3 fins. RTM Tech 1 The Tech 1 honeycomb hexagonal core combined with teh Al Merrick template offers a medium flex pattern, making this fin a versatile option for a wide range of surfing abilities. Tech 1 is designed to perform in a variety of conditions and has a wide base for drive off