This gray t-shirt is a reliable option for daily wear.
Arizona Mens Thermal Henley Shirt S Navy Blue Gray Crew Neck Long Sleeve Preppy
A nice touch is the heavier cotton, which men often prefer for a solid feel.
Chandler Arizona State Graphic T-Shirt Graphic Tee Unisex Apparel Custom Unisex
The white color here is neutral enough to match with any accessory you own.