{"product_id":"true-ames","title":"True Ames Fin","description":"\u003cp\u003eThe Greenough 4-A Single Fin is one of the most iconic and widely used single fin templates ever designed. Developed by legendary surf innovator George Greenough, the 4-A has been a staple of the True Ames fin collection for decades. Known for its incredible versatility, drive, and responsiveness, this fin performs exceptionally well in a wide range of surf conditions—from mellow waves to more powerful surf.\u003c\/p\u003e\n\u003cp\u003eInspired by the hydrodynamic efficiency of tuna tail fins, the Greenough 4-A helped redefine modern single fin surfing by allowing surfers to ride deeper in the pocket and generate more speed through turns.\u003c\/p\u003e\n\u003ch2\u003eDesign \u0026amp; Performance\u003c\/h2\u003e\n\u003cp\u003eThe Greenough 4-A features a balanced template that blends stability, drive, and maneuverability.\u003c\/p\u003e\n\u003cp\u003eKey design features include:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eFull base for strong drive off the bottom\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eModerate rake for smooth, arcing turns\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eTapered flexible tip for responsive release\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eHigh-aspect ratio design inspired by tuna tail fins\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eThis combination allows the fin to generate speed while still maintaining control during powerful rail-to-rail surfing.\u003c\/p\u003e\n\u003ch2\u003eBottom Line Performance\u003c\/h2\u003e\n\u003cp\u003eThe 4-A delivers a highly responsive ride that excels at both generating speed and maintaining control in the pocket. Its balanced design allows surfers to perform powerful bottom turns, long carving lines, and fluid transitions.\u003c\/p\u003e\n\u003cp\u003eFew fins offer the same combination of stability, drive, and maneuverability.\u003c\/p\u003e\n\u003ch2\u003eConstruction\u003c\/h2\u003e\n\u003cp\u003eSolid fiberglass construction provides durability, strength, and a consistent flex pattern. The flat matte finish maintains a classic look while delivering reliable performance session after session.\u003c\/p\u003e\n\u003ch2\u003eWho It’s For\u003c\/h2\u003e\n\u003cp\u003eThe Greenough 4-A is ideal for surfers looking for a versatile single fin that works across multiple board types and wave conditions. It performs exceptionally well in:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eClassic longboards\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003ePerformance single fins\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003eMid-length surfboards\u003cbr\u003e\n\u003c\/li\u003e\n\u003cli\u003e2+1 setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eSurfers who enjoy smooth carving lines, speed generation, and fluid rail surfing will appreciate the balanced feel of this legendary fin.\u003c\/p\u003e\n\u003ch2\u003eIdeal Wave Conditions\u003c\/h2\u003e\n\u003cp\u003eThe Greenough 4-A works across a wide variety of waves—from smaller everyday surf to more powerful conditions. Its ability to hold through turns while still releasing when needed makes it an excellent all-around fin for surfers around the world and here on the waves of Eastern North Carolina.\u003c\/p\u003e","brand":"True Ames","offers":[{"title":"9.75” Smoke","offer_id":44664543019183,"sku":null,"price":95.0,"currency_code":"USD","in_stock":false},{"title":"9” Smoke","offer_id":44664543051951,"sku":null,"price":91.0,"currency_code":"USD","in_stock":false},{"title":"8.75” Kelp","offer_id":44664543084719,"sku":null,"price":87.0,"currency_code":"USD","in_stock":false}],"url":"https:\/\/runyonsurfboards.com\/products\/true-ames","provider":"Runyon Surfboards","version":"1.0","type":"link"}