You will find the crew neck stretches just enough to slip on without hassle.
Gildan G640 Adult Softstyle T-Shirt Ringspun Cotton Crew Neck Plain T-Shirt
What I notice is the crew neck, which has a slight stretch for easy movement.
Eddie Bauer Men’s Short Sleeve Cotton Blend Crew Neck T-Shirt
What stands out about this black tee is the way it drapes on the body.
White T-Shirt Undershirts, 10-Pack, Best Cotton Undershirts, Stay-Tucked T-Shirt
A nice touch: the solid design means you can dress it up or down without effort.
Levi’s Blue Graphic Crew Neck Short Sleeve Cotton Blend T-Shirt Teens XL 13-15Y
This t-shirt uses a graphic print that is centered but slightly tilted for style.