About our T's- • Base t-shirt- Gildan Softstyle unisex fit short sleeve t-shirt • Black, navy blue and white are 100% soft cotton • Sport Grey is 90% cotton, 10% polyester • Dark Heather is 65% polyester, 35% cotton • 4.5 oz (153 g/m2) • Pre-shrunk • Shoulder-to-shoulder taping • Awesome graphics are printed directly onto the garment/t-shirt (DTG printing)