Based on the size chart provided and reading the reviews I bought the XXL for my husband who is 50.5 chest and it fits perfectly. Very good shirt, the material is not as light as we would like for our tropical vacation but that is for dinner and we will be in the air conditioned dining room. It has good detail and is great for night trips around Vegas. He is 6'1", 235 lbs.
Calvin Klein π Herringbone Sleeve Men's Dress Clothing
50 Review
INFLATION Bamboo Shirts Sleeve Elastic Men's Clothing in Shirts
45 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
46 Review