Carhartt Men's Big & Tall Flame Resistant Mock Neck Sherpa Lined Vest 88% Cotton, 12% Nylon Imported Machine Wash For sherpa lining Two large front pockets Two inside pockets Brass front zipper with nomex for tape plus inside and outside protective flaps with hook-and-loop closure for electric-arc protection Meets the performance requirements of nfpa 70e standards and is up classified to nfpa 2113