A nice detail is the regular cut, which avoids the dreaded muffin top effect.
Chevrolet Corvette Old Vette Licensed Adult T-Shirt
The crew neck on this is soft and relaxed, making it easy to wear casually.
Regular Show Poloroid Licensed Adult T-Shirt
This crew neck design is simple, so it pairs well with both jeans and shorts.
Batman TV Series Bat Logo Blue T-Shirt Men’s S-5XL Licensed DC Comics Tee
What I notice about the crew neck is its even stitching and smooth finish.
Top Gun Fighter Weapons School Licensed Adult T-Shirt
A crew neck like this one feels broken-in from the start, no stiffness at all.