You will notice the regular fit doesn’t pull across the chest when you move.
Croft & Barrow Henley Shirt Mens Big 3X Red Easy Care Long Sleeve Lightweight
The red hue on this shirt is exactly what you want for a casual red tee.
Croft & Barrow Mens XL T-Shirt Lot 2 Black Ribbed Easy Care Grey Adventure Tee
What stands out is how the regular fit works with both jeans and chinos.