Koloa Surf Company Men's Fourth of July Cotton Tanks Patriotic Collection. Get ready to celebrate America in one of Koloa Surf's patriotic tank tops. Whether going to a barbeque, hitting the beach, or watching fireworks, make sure to grab your new favorite patriotic tank while chilling. A value-priced tank created from soft 100% cotton. 5.4-ounce, 100% cotton. 50/50 poly/cotton (Dark Heather Grey). 90/10 cotton/poly (Athletic Heather). Proudly printed in the US.