Okay noted! I’d say start with an XL. We pre wash the fabric, but because they’re cotton, they will still shrink about a half inch in the length / sleeve length. Being 6’3 I think the XL length wise will be great.

Without knowing your shoulder length, I’m guessing here.. but my hunch says the XL will be your best bet. It should last you forever - so I always lean more towards a roomier fit. That way you have some space for inevitable shrinkage, you can always get it tailored when/if you need, etc.

We cover all shipping though, so if you need to exchange it or it doesn’t work out, it’s all covered!