A nice touch is the green being slightly darker on the seams for contrast.
Columbia PFG Men’s Terminal Tackle Long Sleeve Shirt Assorted Colors & Sizes
What stands out about this gray is its versatility with denim or chinos.
Polyester Cotton Blend Military Solid Color T-Shirts Tees Tee Shirts
What I appreciate is the crew neck, which stays smooth without wrinkling.
Gildan DryBlend 50/50 Cotton/Poly Blend 5.5oz Fabric Wicks Moisture
This tee is cut for men, with a neckline that doesn’t stretch out of shape.
Spyderco Life’s A Grind T-Shirt Large 65% Polyester 35% Cotton Heather Gray
The solid look here is timeless, so you can wear it season after season.