Ebay offers Adidas Men's Aeroready Designed to Move T-Shirt for $7 (reg $25) after code with free shipping.

Apply Code: ADISUMMER50

Product Description:
From morning workout routines to afternoon track runs, this adidas t-shirt keeps you moving in comfort. Moisture-managing AEROREADY ensures you stay dry when you're on the go. The FreeLift design gives you full a range of motion and a stay-put fit during overhead movements. A longer back hem adds extra coverage.