I wanted so badly to love this sweatshirt and it just didn't work out that way. I normally wear a Large in unisex sized clothes, but I wanted the sweatshirt to fit looser so I ordered an XL, and it fit the way a Large should have. So definitely size up 1 size for normal fit and size up 2 sizes for a looser fit.The collar is also smaller than I am used to, and I do not like things touching my neck so between this and being smaller than expected, I am returning it. The inside is very soft and the material is nice, just wished it was not so form fitting and trying to suffocate me.