My experience is that most of the prices I got ran true to size, while a few pieces ran smaller. So I would say that Shein clothing tends to run true to size with a few exceptions. When it comes to my clothing I usually wear a US medium (8-10). So always I look at the reviewers who look like my size and then check out what size they bought. For me, that is a key indicator as to the size I should consider buying and whether I need to size up or down.