Koloa Surf(tm) Heavyweight Tee Printed with Koloa Surf(tm) Logo Inside. A year-round essential, our best-selling t-shirt has been voted "most popular" by groups, teams, clubs and schools across America. 6.1-ounce, 100% soft spun cotton. 98/2 cotton/poly (Ash), 90/10 cotton/poly (Athletic Heather). 50/50 cotton/poly (Dark Heather Grey). Regular, Big and Tall Sizes. Proudly printed in the US