Depending on the item from FN will determine what size I will purchase. I can go from xl to 1x to 2x depending on how I want an item to fit. I saw this item had stretch but I also saw it was a jersey so I new the material wouldn’t be that stretchy and I was right for me and my size. I ordered the 2x, it’s not oversized, it’s just a little big. Depending on the look you’re going for if you want a regular fit go with your normal size. If you want it a bit oversized, might I suggest size up. I was going to send it back but since I have blue wide leg cargo pants I’ll keep it. For ref I’m 5’6, 38C, chunky arms (not tight on the arms) and small pooch. The fabric doesn’t cling to the body, material is flowy. Hope this helps someone looking to buy this jersey.