This polo shirt is made of breathable mesh material for a comfortable fit. When worn, it has a waist-shaping design and a rounded hem, which creates a beautiful silhouette and makes you look more stylish. I loved it. It has a compact design, so I think it will fit a Japanese size M perfectly. There are some fold lines as it was stored folded. - Brand: adidas - Design: Polo shirt - Color: White/Yellow/Green - Model name: Stella McCartney - Features: Mesh material Thank you for looking. Gender: Women