Calvin Klein black shirt. Made of slightly stretchy fabric, it has a slim fit. The collar tips have a stiffening material to prevent them from losing their shape. I think it can be worn formally. If you have any questions, please ask before purchasing. I think it's in good condition, but it's not new, so please refrain from purchasing if you are concerned. Actual size (laid flat on the floor): Shoulder width: 44 cm Width under the armpits: 54 cm Length (from the back of the neck to the hem): 74.5 cm Color: Black Pattern: Solid Collar design: Regular collar