When I get shirts, they usually have to be customized. I have a 22" neck but have a more athletic build. Classic shirts of this size are more like a tent. It fit perfectly and was quite comfortable.
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review
Gildan Performance Men's π Clothing and Shirts with Moisture-Wicking Polyester
44 Review
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
46 Review