Silk is the strongest natural fibre and yet one of the most luxurious. The weight of silk is known as the 'momme' (mm). The higher the momme, the heavier the silk, and will hang straighter on the body. If you have a straight up and down figure, look for silk fabric of at least 15mm to achieve the heaviness, which in turn will hang from your frame, rather than cling.
A lighter weight silk will follow the body shape and have fabulous draping qualities, making it ideal for curvy figures. It is however important to get a good fit, as the sheen in the
silk will reflect imperfections. Better for the fabric to follow the body shape, than cling to it. Brands also weave a touch of elastane into their silk , which makes it very comfortable to wear.