The XL is listed as a size 18, but it fits more like a 16. I am pretty impressed with this top. Seams are good, buttons are sewn on correctly, and the fabric is soft and of a good weight. It falls somewhere between a t-shirt and a sweater. The cowl neck drapes very well, the sleeves are the right length, it is exactly as pictured. After washing, all I had to do was hang it up to dry as it had zero wrinkles (even without fabric softener).