You will find that unisex adult sizing like this is a win for matching outfits.
Athletic Men’s Dri-Power Essential Blend Tee Sports T-Shirt S-4XL 64STTM
The red color on this tee makes it a standout piece in any wardrobe rotation.
Solid Bright Color T Shirt, Green, Pink, Round Neck, Short Sleeves Size M Unisex
A nice touch is the solid finish, which resists looking dated over time.
32 Degrees Cool T-Shirt Crew Neck Short Sleeve Regular Fit
This T-shirt’s solid design is all about simplicity and practicality.
Tommy John Cool Cotton Tank Top Undershirt Stay Tucked Fit – XL – BLACK – 2-Pack
What I like is the solid pattern, which keeps your look cohesive and tidy.