Ebay offers Adidas Men's Grind Polo Shirt for $12 (reg $30) with free shipping.

Product Description:
After clocking hours at the gym, trade your workout clothes for this polo shirt and step out in sport-inspired style. The clean look of this shirt features a loose shape for added comfort. Moisture-wicking fabric sweeps away sweat to help keep you dry throughout your day.

100% recycled polyester doubleknit

Imported

Polo collar with three-button placket