Everyone's Irish on St. Patty's Day! Commemorate the South Siders this March with this Chicago White Sox St. Patrick's Day Vintage Tri-Blend T-Shirt from Nike! This shirt is all kelly green and features "Chicago White Sox" screen-printed on the chest in white with the White Sox logo in the middle. This shirt also features U.S. Cellular Field's address written across the bottom. 50% Polyester. 37% Cotton. 13% Rayon.