Ebay offers adidas men adidas Z.N.E. Tee for $18 (reg. $45) after code with free shipping. 

Apply Code: HAPPY30TH 

Product Description: 
Whether you're cheering in the stands or strolling through the city, this adidas t-shirt keeps your vibe light and positive. Matte rubber-print graphics inspired by field-of-play lines add sporty details, while the cool-touch cotton fabric feels soothing against your skin. Ready for warm weather, this t-shirt reduces exposure to harmful UV rays thanks to an Ultraviolet Protect Factor (UPF) design.