Carhartt Men's Big & Tall Flame Resistant Force Cotton Long Sleeve Mock Turtleneck 100% Cotton Imported Machine Wash NFPA 2112 Compliant HRC 2 Carhartt Force fights odors and its FastDry technology wicks away sweat for comfort Rib knit mock turtleneck collar and cuffs Side-seamed construction minimizes twisting Carhartt FR and NFPA 2112/HRC 2 labels sewn on side seam