Carhartt Men's Big & Tall Force Mandan Solid Long Sleeve Shirt Relaxed Fit 72% Cotton/28% Nylon Imported Machine Wash Relaxed fit 3-ounce, 72 percent cotton/28 percent nylon rip stop Releases stains with stain breaker technology Fastdry technology wicks away sweat for comfort Double-layer collar converts to stand-up collar for extra sun protection