【New Balance / New Balance】MET24 DENIM • SLIM TAPERED • Size: S ■ MET24 Denim The biggest feature of MET24 DENIM, made of 100% synthetic fiber of polyester and polyurethane, is that it is "denim that doesn't fade." While being a functional synthetic fiber, the material was created over a period of about two years through trial and error, in order to pursue the realistic look and feel of denim.