I would suggest Hobie sails if your going to race. Contact your local Hobie bealer. If there isn't a Hobie dealer available then Jeremy At Surf City Catamarans can order them and ship to you. He also carries a his own line of sails which would save you some $$$$ but wouldn't be class legal to race. But they are a quality product and perform very well. I'm buying all my tiger sails from him for f-18 racing. 831-359-5918 is his shop #.