You will find the crew neck has a gentle curve that flatters most body types.
Bruce Lee Dragon Stance Men’s Tank Top S-2XL Officially Licensed Sleeveless Tee
You will find the round neck is sturdy without being stiff or scratchy.
Teen Wolf “Logo” T-Shirt
What stands out about the small is the even distribution of fabric.
Star Trek Duel in the Desert Gorn Kirk Poster Men’s T Shirt S-3XL Licensed Tee
What I notice is the crew neck, which is cut to avoid any choking sensation.
Aqua Teen Hunger Force Group Tiles Licensed Adult T-Shirt
The crew neck on this shirt is a nice touch, with no scratchy tags or seams.