Question: what is the difference between cotton twill and cotton poplin?
Answer: Though poplin is sometimes conflated with twill, poplin and twill are not woven in the same way. While twill is also a plain-weave fabric, poplin is woven with a fine warp yarn and a thicker weft yarn. While both are strong materials, poplin is often softer than twill. Poplin is also more breathable.