Cotton Slub, its got a lovely round/ crew neck, wider seam line finish on this neckline so it sits really well, a shorter length set-in sleeves and side set in pockets on both sides near the hemline. It's got a slight A-line shape to the body of the shirt.
It is a generous fit so the XSmall is a little more like a small, small would fit a size 12.
team it back with White, Black and all the lovely greens or for a bit more fun Red or coral pants, skirt or shorts!