5.3 oz/yd2 / 180 gsm, 69% polyester, 26% lyocell 5% spandex jersey; Moisture-wicking and antimicrobial performance; The fiber lyocell from LenzingÆ is a sustainably sourced, renewable and bio-degradable botanic fiber; Self-fabric collar with metal three-snap closure; Side vents; Stretch performance; Active fit; Easy care;