Loading... Please wait...Carhartt's Flame-Resistant Snap-Front Twill Shirt is made of 7-ounce FR twill: 88% cotton and 12% high-tenacity nylon - Snap-front closure - Two chest pockets with flaps and snap closures - Three-snap adjustable cuffs - Triple-stitched main seams - Carhartt FR label sewn on left chest pocket - Meets NFPA 70E standards - Flame-resistant fabric by Mount Vernon Mills