I think I agree that this sweatshirt runs small. I ordered a medium and it fit like a small. I relied of the rtr size estimate and it worked. I feel like if you want a tight fit, order your actual size, otherwise 1 size up should do ya. I'm a 4/6 top and the medium was perfect.

Runs small, sleeves are a bit short. I would get an M or an L for a comfier oversized fit. I dont like when sweatshirts are tight around my neck.

Let me preface this review by saying that I usually wear a M/L on top. I opted for an XL in this sweatshirt because I wanted it to be oversized and comfy. It looked so small as soon as I took it out of the package that I thought they sent me the wrong size. Nope, it was the XL. It just fit my mother who is a small.