Ergodyne GloWear 8378X Class-2X-Back Thermal Vest, Lime, 5X-Large Poly-cotton shell with 300g fleece lining Also fits inside popular 8385 4-in-1 series 2-Inch Level 2 ANSI-certified tape (3M Scotchlite) Pockets: Two in front, one large in back YKK no.5 Zippers