My partner is 6ft 5in, I first bought him a dada shirt from another brand, it was short and wide. Then I ordered this brand, they fit perfectly, tall and slim.
AM Fitted T Shirt 3 Pack for Men's Clothing - T-Shirts & Tanks
46 Review
Carhartt Workwear XXXXX-Large Men's T-Shirt – Original Clothing for T-Shirts & Tanks
34 Review
Ultimate Comfort and Style: Minus33 Merino Wool Ticonderoga Lightweight Men's Clothing, T-Shirts & Tanks
43 Review
Men's XXL Super T Mockneck 👕 from Lands End - Clothing, T-Shirts & Tanks
32 Review