Black and Royal Blue back zip top by Show Dressed Up, tagged a medium but measures more to a large. This item is in good, very gently used condition with minimal signs of wear. Base material is a light/medium weight with about 2" of stretch throughout. 
 
Measurments
Bust 38/40"
Waist 34/36"
Hips 42/44"
Arms 25.5"
Shoulders 16.5"
Back Length 28"- zipper unzips fully for easy on/off