I ordered a 1X. The size chart for plus size read;  1X- 16/18, bust 42-44. When I received; tag read 1X- 22/24.
Robe is light sweatshirt weight, well made.
Even though bigger than I like, will keep as I like my robes loose for lounging. Am 5'5", 200lbs. with a big butt and narrow shoulders. The zipper front and seam where hood is attached at nape of neck will keep this larger robe from falling off shoulders. The hood is also small like a sweatshirt hood, and I might alter mine and remove the hood by snipping at seam. I purchased robe for $20.99 Good buy in spite of garment being sized wrong, but for this price is probably why Dream Co. sold on Amazon, to push irregular product on unsuspecting customers. Dream Co. is usually Quality product. Would not pay the increased priced  for this robe of $27.
I haven't washed it yet, so that remains to be seen.