Chemically treated Ultra-Cool 100% polyester mesh materialNon-sparking zipper front closure2 wide reflective materialOutside left chest radio pocket with hook-and-loop tabInside right chest 2-tier, 4-division pencil pocketTwo lower inside patch pocketsANSI/ISEA 107 2015 / ANSI/ISEA 107 2020 Type R | Class 2Does not meet ANSI FR RequirementsTest Method: D6413/Less than 2 seconds after flame, less than 6 char lengthFabric dye lot variances may occur and meet luminance factor as statedin the standard.