{"product_id":"build-your-own-grennan-futures-base-apex","title":"Build Your Own Grennan (Futures Base) - Apex","description":"\u003cmeta charset=\"utf-8\"\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003e\u003cstrong\u003eBuild your own Thruster \/ Quad \/ 5-Fin Grennan fins.\u003c\/strong\u003e\u003cbr\u003e\u003cbr\u003eJeff Grennan has been working on the design of his templates for years. \u003c\/span\u003e\u003cspan\u003eOver the last year we've been working with him to add a high performance foil in order to increase the flow and speed of his fins.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eJeff's idea was to pair a narrow base in order to decrease drag while adding lots or rake in order to retain control down the line and through turns. \u003c\/span\u003e\u003cspan\u003eAnd boy was he right; his template has become a favorite in the San Diego glider scene and is used by the likes of Skip Fry and Bob Mitsven as well a tons of others.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eThe Grennan fins are part of our Apex Series lineup. Apex fins are made with precision foiled G10 fiberglass; \u003c\/span\u003e\u003cspan\u003eG10 is made by compressing layers of fiberglass and epoxy resin and baking it an autoclave to have the maximum strength of any fiberglass available. Learn more about the \u003c\/span\u003e\u003ca href=\"https:\/\/www.surfnvs.com\/pages\/nvs-apex-series-G10-fins\"\u003e\u003cspan class=\"s2\"\u003eNVS Apex Series fins here\u003c\/span\u003e\u003c\/a\u003e\u003cspan\u003e.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eLarge\u003c\/strong\u003e:\u003cbr\u003eBase: 3.84 inch\u003cbr\u003eHeight: 4.60 inch\u003cbr\u003eArea: 14.11 square inch\u003cbr\u003eFoil: Flat SeriesIII\u003cbr\u003e\n\u003cp class=\"p1\"\u003e\u003cbr\u003e\u003cstrong\u003eMedium\u003c\/strong\u003e\u003cbr\u003eBase: 3.82 inch\u003cbr\u003eHeight: 4.60 inch\u003cbr\u003eArea: 12.87 square inch\u003cbr\u003eFoil: Flat SeriesIII\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eSmall\u003cbr\u003e\u003c\/strong\u003eBase: 3.54 inch\u003cbr\u003eHeight: 4.25 inch\u003cbr\u003eArea: 11.09 square inch\u003cbr\u003eFoil: Flat SeriesIII\u003c\/p\u003e","brand":"NVS","offers":[{"title":"Large \/ Medium \/ 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