Sport-Tek Youth PosiCharge Re-Compete Tee YST720Recycled polyester and color-locking PosiCharge technology make this smooth-faced, odor-fighting, moisture-wicking tee outcompete other t-shirts., 3.8-ounce, 100% recycled polyester with PosiCharge technology, Tear-away removable label, Taped neck, Set-in sleeves, Athletic fit, 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.org.