A nice touch: the solid hue here is deep without being too dark.
Supreme team shirt
This solid T-shirt is a straightforward pick that never disappoints.
Gildan Mens Plain T Shirts Solid Cotton Short Sleeve Blank Tee Top Shirts S-3XL
A nice touch is the curved hem that adds a little style for all seasons wear.
Spyder Swim Men’s Solid T-Shirt Rashguard Quick Dry UPF Lightweight Hybrid S/S
A crew neckline like this keeps the focus on the fabric and print instead.
Filson 6.5 oz Pocket T-Shirt 20277957 Charcoal White Olive Whiskey Frontier Tee
You will find that a solid T-shirt like this is a foundational wardrobe item.