I’m a large across the board in Howies, 5’11, 34 inch waist, 40-41 inch chest. I can wear their medium stuff but it’s a bit snug, if you go to say north face I’m a medium all the way, large is massive on me. Most of my running kit is Salomon and it’s all large. It depends on the company but to say it’s crap sizing is pretty harsh, you could look at Castelli and you’d be in double or triple XL.