The Wolverine Flame Resistant Twill Shirt is a button-down style, flame-resistant shirt, which meets ASTM F1506 and OSHA 29 CFR 1910.269 standards. The twill shirt is made with Milliken Amplitude Flame Resistant Fabric, flame-resistant Nomex thread and Melamine buttons. This shirt offers one chest pocket with Wolverine FR label, button and pencil-slot opening, a locker loop on the back yoke with center back pleat allowing for additional range-of-motion, triple-needle topstitching for durability, rolled shoulders and an extended shirt tail bottom and button down collar. The twill shirt is available in gray, khaki, blue and navy and in sizes S-XL.