I'm a tall guy 6ft 1 in 310 and I usually wear 5x so I ordered 5x and they are a bit bigger than most other 5x but as they say , it's actually not bad because it's almost impossible to find large clothes, so keep shopping, just order one size smaller than usual.
Ashers Apparel Schrute Breakfast T Shirt Men's Clothing for T-Shirts & Tanks
34 Review
Carhartt Workwear XXXXX-Large Men's T-Shirt – Original Clothing for T-Shirts & Tanks
34 Review
Men's XXL Super T Mockneck 👕 from Lands End - Clothing, T-Shirts & Tanks
32 Review
Ultimate Comfort: Discover the Comfort Colors Sleeve 6014 - X Large Men's Clothing, T-Shirts & Tanks
40 Review