6.95 oz./yd², 50/40/10 modacrylic/lyocel/twaron, modacrylic flame-resistant blend interlock knit material; Lightweight ; 2” wide high performance breathable reflective material greatly reduces hot spots and provides greater flexibility over solid tapes; Dark flame-resistant sides provide visual contrast; Left chest pocket; ANSI/ISEA 107-2015 / ANSI/ISEA 107-2020 Type R | Class 3CAT 2 Arc Rating/ATPV: 16 cal/cm2