The quality and mateiral of this poncho is seriously awesome. I’m 5’6” and 140lbs and I bought the small. Personally, I love the fit and feel the large would have been to big and bulky. The only drawback I have is that the colors are REALLY bright. I’m into color, which is why I chose this one, but it’s pretty in your face. So, if you’re into that, great. Otherwise, pick a different one. Truly though, solid product made by Slowtide. I’d recommend it!