Made with 100% organic cotton this eco-friendly tee is both sustainable and affordable. 4.5-ounce 100% organic combed ring spun cotton 30 singles Classic fit 1x1 rib knit neck Shoulder to shoulder taping Set-in sleeves Side seams Tear-away labelA C-FREE ProductWe start by reducing the product's impact by switching to at least 50% preferred materials. We then neutralize the total carbon footprint of each product in the C-FREE program--from the product's initial raw materials to its end-of-life--through Carbonfree certification. This certification purchases third-party verified carbon offsets through Carbonfund.org.