I don't know what's going on but it looks like XL for boys and it doesn't say boys or youth anywhere so I ordered XL, this shirt is smaller than the men's XS.
INFLATION Bamboo Shirts Sleeve Elastic Men's Clothing in Shirts
45 Review
Men'S Regular Fit Short-Sleeve Dress Shirts By Allsense - Look Stylish And Professional!
41 Review
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review