J. Crew black Going Out Blazer in stretch twill size 12

Meet our customer-favorite going-out blazer. With an open front and slim cut, it's for those nights you want to show off your favorite top (thus the name) but it's substantially stretchy and structured enough to be worn anytime, anywhere. Like meetings and lunch dates and coffee runs and... P.S. Pair this back to our Pencil Skirt & Cameron Pant in stretch twill and you've got a modern take on a suit. Viscose/nylon/elastane. Standing collar. Back vent at hem. Welt pockets. Padded shoulders. Lined. Dry clean. Import. Item H2743. In good used condition. Approximate measurements from flat lay: chest: 21" length: 23" sleeve: 22" shoulder: 16" The review aggregate on J. Crew's website suggests this runs slightly small. Please reference the measurements to ensure fit.