Brand new with tags Blackmilk top! Dubbed the "Vivarium Cute as a Button Shirt" Website Description: "The full title of this engraving, which appeared in an 1800s natural history book, is “The Vivarium or Insect-Home: For Observing the Transformation of Butterflies, Moths and Other Insects”. Which pretty much says it all, really. Made from a soft, lightweight and slightly sheer fabric. Cool, short sleeves. Button-up front. Sweet Peter Pan style collar. Because every item is made with love, print placement may vary." Blackmilk calls it "slightly" sheer, but I'd say it's fully sheer, and bright undergarments will definitely show through. That said, imagine a bright pink bra with this--it'd be kinda cute! But, yes, definitely sheer, definitely skin-colored undergarments recommended if you don't want to show off your goods or have people noticeably see your bra. Australian size 8, which is about a US size 4 or small. Happy to answer any questions!🥰