For many years I have always preferred cotton t-shirts or shirts with a polyester/cotton ratio of at least 50/50. These new training shirts look different because they are 100% polyester and feel great. I love the baseball jersey style with sleeves and the loose, comfortable fit. I'm 6'1" and my chest is 42" so I ordered a size up. If you're younger you might be a little tighter if you're proud of your pecs and abs, but at 55 I've opted for a looser fit despite being fit. Looks great for a t-shirt!
Carhartt Crewneck Sweatshirt Regular X Large
42 Review
Off White Men's Clothing: Amazon Essentials Lightweight Active Sweatshirt
42 Review
USB Rechargeable Heated Body Warmer Vest For Men - ZLTFashion Electric Jacket For Winter
42 Review
Bodybuilding Pack Workout Shirt from COOFANDY
46 Review
INFLATION Bamboo Shirts Sleeve Elastic Men's Clothing in Shirts
45 Review
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
Van Heusen Traveler Stretch Men's Shirt
47 Review