Port & Company Essential T-Shirt. PC61 100% Cotton A year-round essential, our best-selling t-shirt has been voted 'most popular' by groups, teams, clubs and schools across America.Heavyweight 6.1-ounce, 100% soft spun cotton (preshrunk) Shoulder-to-shoulder taping Coverseamed neck Double-needle hem Ash is 98/2 cotton/poly Athletic Heather is 90/10 cotton/poly Dark Heather Grey is 50/50 cotton/poly