Here is an awesome vintage piece from the 1970s by Kimlon, 100% acrylic. Great striping of brick red and off white. Three button collar, 6" slit up both sides at the bottom. I'm not sure if this is a short dress or a long top, but you'd have options depending on what you need. Fairly light weight, sheer, soft and comfy. It's in amazing condition, and has years of life left. The tag says Medium, but here are the measurements taken laying flat. (refer to the last pic above to see how I measure shirts)

Chest (armpit to armpit) 16"

Shoulder to end of sleeve (including cuff) 22"

Length 29"

This item is sold from a vintage boutique in Roanoke, VA.