505 SPINNAKER Designed to the current long luff rules the sail has a radial base and horizontal upper panels to allow the leeches to exhaust on the close reaches. A development of the S07A, the new sail is slightly fuller in the head offering more power and a greater range of tactical options when sailing angles downwind without sacrificing the ability to close reach or run deep. An excellent sail for all round use, this sail will excel on championship courses. This sail is made from 0.75oz Dynakote.