Polypropylene
“Ultralight, dry-feeling, and very quick-drying”
Polypropylene absorbs almost no water, so it dries quickly. Its surface can feel distinctly technical, and it may retain odors.
Like an ultralight performance base layer
Fiber percentages alone cannot tell whether the fabric will look shiny or matte. Yarn shape and finishing can make a substantial difference.
The surface may range from smooth to softly brushed, so actual product photos will be especially helpful.
Whether the fabric flows or holds its shape depends heavily on its construction and weight.