The Lost Large 5-fin, designed by Matt "Mayhem" Biolos, is a large size Balanced quad/thruster combo with a Ride Number of 6.6/6.7 respectively. Designed with high performance surfing in mind these fins incorporate a carbon base that provides stability through turns, while enhancing the spring through the tip. The Quad rears have an 80/20 foil for increased responsiveness, and allow for a smooth transition from performance Thruster to performance Quad.
A lightweight hexagonal core gives these fins the feel of glass-ons. Engineered with a medium flex pattern, these are stiffer than Blackstix but more flexible than Fibreglass.