You will find that a solid tee like this one simplifies your daily choices.
Fred Perry Polo Shirt Black Yellow S M L XL XXL M3600 Slim Fit Pique Twin tipped
This tee is cut for men, so the chest pocket is deep enough for small items.
Fred Perry Polo Shirt Slim Fit Pique Twin tipped
A nice touch is the green lining inside the collar for a cohesive look.