Ultra Cool™ 100% polyester mesh with contrasting trim 5/8" silver reflective material with contrasting colors Elastic band to fit over most hard hats p NON ANSI/ISEA /p p em Fabric dye lot variances may occur and meet luminance factor as stated in the standard /em /p p br /p p strong " a style float none href https //www youtube com/watch?v E49_AstRsm8 target _new CLICK HERE /a /strong a style float none href https //www youtube com/watch?v E49_AstRsm8 target _new span style text decoration underline to watch product video /span /a " /p