A nice touch is that the short sleeves are wide enough to avoid restricting movement.
Amazon Essentials Men 6 Pack Crewneck Undershirts White Blank Medium 100% Cotton
A crew neck like this one sits comfortably under sweaters or cardigans.
Wholesale Polyester Hydrophobic Stain Proof Anti-fouling Waterproof T Shirts
What I notice is how the white shirt doesn’t show sweat marks too easily.
YETI to Party Christmas T-Shirt 2XL Blue Graphic Holiday Distressed Funny
Short sleeves make this shirt a versatile piece for both indoor and outdoor wear.
IBS International Basic Source Black T-Shirt Men’s Size 3XL
The solid hue gives this T-shirt a smooth, uninterrupted visual flow.