Durable yet soft midweight 5.75 ounce cotton poly blend that s built to work. Heather Gray fiber content is 59 cotton 41 polyester. FastDry technology wicks away sweat for comfort so you can stay focused on your day. Stain Breaker allows stains to wash out easily. Henley collar with three-button front for a more comfortable fit. Raglan sleeves increase range of motion for less restriction.