Sharp Eye Zipper E3-Lite 5'6 Surfboard - FCS II5'6" x 20" x 2. 5" 31. 1L The Zipper from SHARPEYE Surfboards delivers the worlds fastest surfboard with Alternate Performance in Everyday Conditions. The Zipper offers a versatile fin configuration, allowing it to be set up as a performance two plus one, thruster, or quad. It features a flat entry rocker that smoothly transitions into a flattened exit, complemented by forgiving, catch resistant boxy rails. A single concave runs between the fins,