It is hard to guess the sizes. I am not overweight or big, I am 6 feet, around 204 pounds. This one extra extra large is the best fit among the options available on the internet page. When I buy shirts, just large fits me. Large size for this product is too tight.
Van Heusen Traveler Stretch Men's Shirt
47 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar
43 Review
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52 Review
H2H Mens Casual Slim Fit Short Sleeve T-Shirts Cotton Blended Soft Lightweight V-Neck/Crew-Neck
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Crewneck Fleece Sweatshirt For Men By Goodthreads
48 Review
Cimic Black Athletic Short Sleeve T-shirts 520
50 Review
Newzill Compression Calf Sleeves (20-30MmHg) For Men And Women - Ideal Alternative To Compression Socks, Perfect For Running, Shin Splints, Medical Needs, Travel, And Nursing
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Carhartt Crewneck Sweatshirt Regular X Large
42 Review