Rasco FR Men's Cotton 7.5 Oz Coveralls 100% Cotton Rasco FR offers these Flame Resistant Coverall at an affordable price, Rasco FR has been making workwear since 1988 and has specialized in FR workwear since 2001. During that time Rasco has gained a reputation for being first in safety. Out top priority is the protection and comfort of the hardworking men and women who wear Rasco FR Clothing Rasco FR continues to protect those in the Electric Utility, Oil Field, Gas Field, Petrochemical, and Welders, other Workers from electric arc flash and flash fire hazards. Our 100% cotton garments are Guaranteed to be comfortable, and to be flame resistant for the useful life of the garment, provided that clothing care instructions are followed. Flame Retardant Clothing is what we specialize in at Fire and Safety, We will continue to bring you the best of Rasco MFG and stands by every Amazon Purchase Our 7.5 oz FR Twill 100% Cotton Coveralls are; NFPA 2112 and ASTM F1506 Certified by UL, NFPA 70E Compliant and OSHA Standards with a rating of HRC 2 ATPV 9.8 cal/cm2 . Factory is ISO 9001 Certified, which guarantees top quality.