You will find that an unbranded tee like this is a reliable basic.
Men’s Black Jesus Religious Graphic Print Crew Neck Cotton T-Shirt, Size L
The graphic print on this tee is subtle enough for a professional casual setting.
Jesus Shirt, Sarcastic Christian Meme Tee, Omg You Guys That’s Not What I Said
A nice touch is the unbranded hem, which stays flat and neat.
Jesus Loves You Minimal Cross T-shirt Christian Shirt
A nice touch in the small size is the reinforced stitching at stress points.
Jesus Saves JesUSAves USA American Flag Patriotic Christian T Shirt
Short sleeves give this shirt a laid-back charm that suits any casual setting.