Product Description - High quality construction and premium materials set this Flame-Resistant Anti-Static Long Sleeve T-Shirt aside from its competitors. - Product Information - Fabric: MODAFLAME KNIT 200g - Modaflame Garments can be layered to achieve an overall Arc Thermal Performance Value (ATPV)or Energy Break open threshold (Ebt) Rating. For example, thermals may achieve an Ebt of 4.3 Cal/cm², and an outer coverall may achieve an ATPV of 13.6Cal/cm2. However the combination ATPV will