Ultra-Cool 100% polyester meshHook-and-loop 5-point breakaway shoulders, sides, and front closure2″ wide high performance reflective material with 4.5″ contrasting colorLeft chest mic tabInside left chest 2-tier, 4-division pencil pocketInside lower left patch pocketInside right chest cell phone pocketANSI/ISEA 107 2015 / ANSI/ISEA 107 2020 Type R | Class 2Fabric dye lot variances may occur and meet luminance factor as stated in the standard.