101028 - M FR Classic Plaid Shirt Made from 6.5-ounce, flame-resistant twill, this classic plaid shirt features a button-down collar with button closure. ORIGINAL FIT • 6.5-ounce, FR twill: 88% cotton/12% high-tenacity nylon • Button-down collar with button closure • FR melamine buttons throughout • Two chest pockets with button closures • Extended sleeve plackets with two-button adjustable cuffs • Carhartt FR label sewn left pocket; NFPA 2112/CAT 2 label sewn on sleeve placket • Meets the performance requirements of NFPA 70E and is UL® Classified to NFPA 2112