Massively too small. I am 5’11, 13.5 stone (some belly! But nothing outrageous) and brough Larges.
They barely reach the waistband of my trousers/shorts. They are tight across the chests and arms are huge! I don’t know what a person who fits these proportions would even look like - something out of Lord of the Rings.
A shame as material is actually good quality and pattern/colour is nice 🤷🏻♂️