Optiparts Club Optimist Sail EX1059Made of strong 3.8oz high quality 100% dacron sailcloth. 6 panels with nickel plated eyes. Heavily reinforced cornes. Built to give many years of useful service in learn to sail schools. Complete with sail bag for storage of sail and spars. With window, sail battens, class logo and I.O.D.A. button. According to the IODA class rules.