What I appreciate is the crew neck, which stays smooth without wrinkling.
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.
Soffe M280-3 50/50 Poly/Cotton Military Tees Crew Neck Military Issue New 3Pack
You will find that the black fabric is lightweight and comfortable.
Soffe Military Short Sleeve Polyester T-shirt – USA USMC Certified T-shirt
You will find that the solid design here keeps things simple and never goes out of style.
Hanes® Ultimate®Men’s 4-Pack X-Temp BREATHABLE Mesh Crew-neck Tee “TAGLESS® “
A nice touch is the way the white sleeves roll up without losing their shape.