r/HumanMade

Hey guys, I'm 5'7 and a bit fat weighing 90kg. I have a Carhartt WIP shirt, Large on tag and fits a bit bigger for me but on the good side. I'm trying to buy an HM shirt online. What size could possibly fit best for me? Sorry I just don't have access to tape measures and surely don't know how to use it. Please help. Thank you so much!