This is a women's XXL item. I thought it might be similar to a men's L, so I've listed the size as L (the seller/wearer is male, 170cm tall, 64kg). Worn 2-3 times. Around late September to October. It's perfect for when it's chilly enough to need something over a short-sleeved T-shirt. It's a double-breasted style, so the buttons can be fastened on either side.