I bought a shirt for my son who is interested in menswear. I ordered a medium and it ended up fitting my 7 year old son instead of my 14 year old son it was intended for. The recommendation would be to buy at least three sizes to get a regular fit.
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review
INFLATION Bamboo Shirts Sleeve Elastic Men's Clothing in Shirts
45 Review
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
Gildan Performance Men's π Clothing and Shirts with Moisture-Wicking Polyester
44 Review