Built from 100% recycled polyester fabric Nike scores a victory for sustainability and performance in these sophisticated polos engineered with Dri-FIT moisture management technology Details include a flat knit collar two-button placket with dyed-to-match buttons with 60% recycled content open hem sleeves and an open hem A contrast heat transfer Swoosh logo is on the left sleeve Made of 4-ounce 100% recycled polyester fabric.