This easy belt pattern is in Crochet That Fits. It’s a beginner project that features Mary Jane Hall’s Graduated Stitch Method. A quick, fun project! Nylon cord is used, but you could use any yarn or thick string. Nylon is stronger though, and will make the belt studier. The nylon used for this belt is about the size of a sport yarn. If you want your belt to be wider, use a thicker # 4 yarn or a bulky (#5) yarn.

Nylon is available at Hobby Lobby or at this website (http://creativeyarnsource.com/) with 75 colors to choose from! Look here:
http://creativeyarnsource.com/la_espiga_no_18.html