Casual loose fitting cotton blend plus size top. T

This top either came from Stitch fix or Dia (plus size subscription service). I may have worn it twice. Near perfect condition except there are no care tags or size tags. I tend to cut off tags sometimes if they annoyed me. Measurements are approx when laid flat but this has stretch to it Pit to pit 25” Length 28” The shirt flares a bit at midsection and is loose All sales ship same or next business day Pet and smoke free home I am guessing in the size as no other tag is on the garment. But all my other tops received at same time are 18W