adidas James Harden T-shirt james harden I wore this as casual wear. It shows some signs of wear, but it's still in wearable condition. The Adidas size is 3XL, but the actual measurements are: Measured flat: Width: 58 cm Shoulder width: 46 cm Length: 70 cm Sleeve length: 25 cm Therefore, in general sizes, I think it corresponds to a size L to XL.