Durable, comfortable and functional. 6-oz Jersey knit. Extra Long to stay tucked in all day. One Inch, no roll, high density collar. Double needle tailoring at the shoulder for strength and durability. 4.5 ounce ring spun cotton for comfort and durability. Moisture wicking technology. Tapered fit to stay tucked in all day. Printed label to prevent chafing. Spandex ribbed crew neck. Accepts embroidery and silk screening well.