Carhartt's Short-Sleeve Twill Work Shirt is made of 5.5 ounce, 65% polyester, 35% cotton twill - Wrinkle-resistant fabric with stain-repel-and-release finish - Spread collar with a separate band and butoon closure - two chest pockets with mitered flaps and button closures - Square bottom - Dyed to match buttons - Carhartt label on bottom of front button placket.