String for recurve Bow

I just purchased an Shakespeare Ocala X-17 recurve bow. It looks to be in excellent condition. Markings on the bow say +45+ KO2622C 60". I would like to purchase a string for this. My draw length is 28". I usually shoot a Mathews SQ2 compound Bow. But this is my first recurve. I have not had time to go to a pro shop for this. Can anyone help me. Thank you, samhuston1