Dating both of the union tags puts this in the late 60s or early 70s. Navy blue with white dots. Button up. Sleeveless. Front pockets. Lined. No material tag - likely polyester. Vintage size 10. This was likely part of a men’s multi piece suit back in the day, but I wore it as a dress - see pic (boots in pic for sale in separate listing). For reference, I’m 5’7”, 115lbs. Excellent used vintage condition - no rips, tears, or stains. Flat lay measurements are approximate. PTP 17”Waist 16.5”Length 30”