Longboard surfers, this SBS Butterfly fin is a modern classic. It's a 9-inch single fin inspired by the legendary George Greenough 4A design, known for its versatility and smooth performance. The design philosophy here is \stiff base, moderate rake, medium flex, narrow tip.\ What does that mean for your ride? The stiff base gives you solid drive and control, especially when you're really leaning into a turn. The moderate rake provides a good balance between maneuverability and stability. The medium flex in the tip allows the fin to give a little during powerful turns, offering a smooth, forgiving feel that's great for traditional longboarding style - think noserides and graceful turns rather than sharp cutbacks. The narrow tip reduces drag. It's a fantastic all-around single fin for classic longboards and funboards, helping you generate speed down the line and maintain that classic, soulful glide. If you're looking to upgrade your stock fin or find a reliable performer for a wide range of conditions, the Butterfly is a top choice from SBS, a respected name in surf fins. Time to feel the difference under your feet.