Based on other reviews I sized up by 2- I think it would have worked much better to just size up by 1 or not at all. I plan to exchange or buy another one. The shirt itself is very comfortable and I think when it fits better, it will be very flattering. I bought a long sleeve version under another brand, and I can say that the Timeson brand is a better quality and much softer. The other brand was was lower in cost, ordered in my normal size and was very flattering, but was sheer and was not as high quality.