For those of us living in So Cal, rompers are a very wearable style (this is less so in other places). But I love wearing a romper as a transitional piece and am often asked how to wear this these in a more professional setting. Basically, consider it a skirt and for colder seasons or for work (even in warmer seasons) add a pair of thick tights that are the same color as the shorts. I love wearing this Ted Baker romper (similar) casually, but feature it here with tights and in a more conservative style. The colors are bold as is the pattern so I keep the rest simple and monotone. In the Ted Baker brand I tend to wear a 0 or 1 (which is listed as a US size 2 or 4, but I think there's some glamour sizing there and probably its more like a 0 or 2) -- lucky for me both are at the sample sales. If you're in the LA area check out this sample sale in the Cooper building for sure. I am wearing this pretty romper with american apparel tights and Ann Taylor shoes from forever ago -- but a good pair of navy heels can be hard to find so I kept them around. In the fall add boots instead of heels and you have another look entirely!