Only available from the official Chicago Shamrock Shuffle 2022 5k participant goodie bag. The shirt is in brand new condition and only tried on. Size Unisex Medium (more athletic fit). Created by Nike in their Dri-fit material lineup, this shirt is perfect for exercise or casual wear, with sweat-wicking and anti-odor performance capabilities. Fit: Regular / Athletic Brand: Nike Size: Mens Large Color: Green Micomesh for lightweight Material: Dri-Fit Synthetic