Super thin material, an undershirt is an absolute must. Not very long either, so if you plan on tucking it in, this might be the best choice for those with a long torso.
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
46 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
Van Heusen Traveler Stretch Men's Shirt
47 Review