Take one part reclaimed, pre-consumer cotton scraps from t-shirt production runs.Blend in rPET poly made from recycled plastic bottles. The result? The soft, carbon neutral Core Blend Recycled Tee-wear it for you and the planet.,5.4-ounce, 50% recycled cotton/50% recycled polyester,Carbon footprint neutralized through Carbonfree certification,1x1 rib knit collar,Shoulder to shoulder back neck tape,Tear-away label,A 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. **