The FCS G1000 Glass Flex Tri fin set up in natural was designed for groms and riders under 120 pounds. This is a standard all around fin template that will work great in average everyday conditions. The small base and flexy tip allows for an extremely forgiving ride which those lightweight riders need until they build strength in their legs. Your up and coming grom that is looking to progress in the shortboard realm will really benefit from these fins! FCS Fins.