UNIQUE! I've searched everywhere online to find out more about this adorable Adidas top/jacket & found nothing! The label says "Clima 365" and "M" plus "160/84A" (Chinese sizing) but a women's size M should be a 175/96A so I think this may be a children's. It fits me, (a tad snug) - I am a women's 4. If you wear a XS/S it will be perfect. Flatlay measurements: armpit to armpit: 17", sleeve: 7", length: 19". Shortsleeve, 100% poly. Black with gold zippers & accents. EUC. One of a kind!