6.4 oz GlenGuard® FR. Button front with lined convertible collar, two chest pockets with pocket flaps, button closure and pencil stall in left pocket. One piece, lined cuffs with button closures. Melamine buttons. Available in long sleeve only. Shirt sewn with NOMEX® fiber thread. ATPV 8.1 HRC 2. US & Canada Colors: 448 Medium Brown, 565 Navy, 831 Cool Blue.