Ultra-Cool™ 100% polyester mesh; 4-season adjustability for accurate sizing in any weather even over bulky coats; 5-point breakaway; Hook-and-loop front closure; Two 1" wide high performance reflective material with 4.5" contrasting color; Left chest mic tab; Inside right chest 2-tier pencil/cell pocket; Two inside lower patch pocket; Outside left chest 2-tier pencil pocket; ANSI/ISEA 107 2015 / ANSI/ISEA 107 2020 Type R | Class 2; Fabric dye lot variances may occur and meet luminance factor as stated in the standard.;