Duckworth Vapor Loose Crew - Women's 38% Helle Rambouillet fine merino, 50% recycled Polyester and 12% Modal High performance fabric that's lightweight, no-stink, and ultra fast drying Wool is anti-microbial, so there's no stink Summer wool is very lightweight, fast-drying and breathable Conductive Re-Vaporation keeps you cool during exercise Materials: 38% Helle Rambouillet Merino wool / 50% Recycled Polyester / 12% Modal