I'm 5'9" 160 lbs. I prefer a snug fit. I ordered a medium and was swimming in the shirt. I returned and ordered the XS and they fit much better and as I prefer and would expect workout clothes to fit.
H2H CMTTS267 Athletic Performance T-Shirt for Improved Performance
51 Review
Off White Men's Clothing: Amazon Essentials Lightweight Active Sweatshirt
42 Review
Optimized Airflux Sleeve for PGA TOUR Standards
43 Review
Cimic Black Athletic Short Sleeve T-shirts 520
50 Review
INFLATION Bamboo Shirts Sleeve Elastic Men's Clothing in Shirts
45 Review
Calvin Klein 👔 Herringbone Sleeve Men's Dress Clothing
Van Heusen Traveler Stretch Men's Shirt
47 Review
Men'S Long Sleeve Polo Shirt - Slim Fit, Stretchy, Breathable Collar