I bought 3 shirts (different universities) in size XXL. One shirt was in Gildan, which I liked very much, and the other two were in an unknown left-wing brand. And they fit about 3 sizes smaller than Gildan. I left Gildan but the other two had to be returned. I was so speechless. Please note: they are not all from the same brand and do not all fit the same.
Gildan Performance Men's 👕 Clothing and Shirts with Moisture-Wicking Polyester
44 Review
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
46 Review
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