Best Answer:Modal is a synthetic material like say Rayon. I believe it is derived from a tree. Absorbent, very soft. Mixed with spandex it holds it shape through many washings. My advice about washing/drying though goes against most manufacturer's recommendations. Wash in cold water, and line dry!! Always! Dryer heat and warm water destroys clothes (and not just your briefs). Trust me... Dana
It's a light weight stretchy fabric. It's not as thick as cotton and feels a little cooler (because it's lightweight) and smoother than cotton but it's not as slick or smooth as a polyester. Hope that helps.