This blouse runs large, billows out slightly, and hangs in a boxy straight way. i'm normally a medium but can probably wear a small in this blouse. the blouse is lined with a light-weight material but i can still see through it just a little bit. although very pretty, the blouse can snag easily so be careful when wearing. regardless, i plan to return for a small because this blouse is beautiful and unique. perfect for fall with its warm colors or summer because it's light weight.