I've seen many reviewers complain that they run small; I ordered US size M and it fits just right. Although the arm area is a bit tight, it is loose in the stomach area. The quality of the fabric is so-so. You can find the best active polo for the price.
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
42 Review
Optimized Airflux Sleeve for PGA TOUR Standards
43 Review
Carhartt Crewneck Sweatshirt Regular X Large
42 Review
H2H CMTTS267 Athletic Performance T-Shirt for Improved Performance
51 Review