Belissimo blue, black & white short sleeve blouse-size L

Belissimo blue, black & white short sleeve blouse. Front of the blouse and sleeves are black and white. The back of the blouse is blue. Keyhole button closure in the back. Size L. Armpit to armpit is 22 1/2 inches, length is 28 inches. Material is 100% polyester. In new condition. Says XL, however measurements are L.