You will find that a solid T-shirt like this one is a wardrobe workhorse.
Rock & Republic Henley Pullover Men S Blue Black Long Sleeve
A nice touch: the solid color makes it easy to layer under a hoodie or blazer.
LACOSTE + OLD NAVY ~ Men’s L ~ Lot of 2! Camouflage Polo & Cottton T-Shirt c44
What stands out about this shirt is the subtle gradient in the camouflage.