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.
Humants Men’s XL Workwear /Outdoor Jersey Pocket Tee Dark Gray heather Cotton
What I like is the crew neck, which stays put and doesn’t stretch out of shape.
Hanes Mens Comfort Wash USA Cotton T-Shirt L LG Purple Plum Rasin Crew Neck
This crew neck design is simple, so it pairs well with both jeans and shorts.
Champion Authentic Athleticwear Mens T Shirt 2XL Gray SS Classic Embroidered
This solid T-shirt is your everyday essential, no logos or graphics to distract.