You will find that a solid T-shirt like this one is a staple for any closet.
Trendy Patriotic XX XY Athletic Print Tee|Unisex Workout & Casual Hang T-Shirt
A nice touch is the black label sewn inside the collar.
V Neck T Shirt Mens Large Blue Heathered Stretch Minimalist Preppy Neutral
You will find that an unbranded T-shirt is easy to dress up with a blazer.
BAF Shirt Mens Large Green Short Sleeve Stretch Lightweight Crewneck Tee Casual
You will find that this green goes well with black or gray bottoms.
True Classic Polo Small (3 pack) Olive, Gray, Navy
The solid pattern means this shirt is a reliable choice for travel or work.