Fabric: Lightweight, super-stretch ribbed knit. Reformation is part of The Climate Pledge, a commitment to reaching net-zero carbon emissions by 2040. Mock neck. Short cap sleeves. Shell: 67% tencel lyocell/29% cotton/4% spandex. Hand wash. Made in the USA. Measurements: Measurements from size XS Length: 20.5in / 52.0cm, from shoulder