Feels like a cotton blend (it could be straight cotton but no tags so unsure)

Armholes are pretty tiny/small, just be aware they are only about 10 inches in circumference :)

Permanent tie belt at the sides.

No stretch! zips up the back

bust measures 18 inches pit to pit lying flat

waist is 15 inches across

hips are 26 inches across

length is 35 inches