Cotton polyester blended fabric. Big and tall mens Oxford dress shirts include xxl,xxlt,3xl,3xlt,4xl,4xlt,5xl,5xlt,6xl,6xlt.ensure ample room and a comfortable fit,With fits designed for Big & Tall Men's Casual Button Down Shirt design in classic , one pocket, turn down collar, long sleeve, The classic and elegant design keeps you fashionable and youthful Men's long sleeve big and tall shirts provide a variety of colors to meet your different needs.Includes plaids,striped and solid colors, to suit every taste and style. Size of oxford shirts for men is Big & Tall size.Please refer to our size chart to choose the most suitable size(In the last picture)