Alb

"The alb (from the Latin albus, meaning white), one of the liturgical vestments of the Roman Catholic, Anglican, Lutheran, and Methodist churches, is an ample white garment coming down to the ankles and is usually girdled with a cincture (a type of belt, sometimes of rope similar to the type used with a monastic habit, such as by Franciscans and Capuchins). It is simply the long, white linen tunic used by the ancient Romans.

As a simple derivative of ordinary first-century clothing, the alb was adopted very early by Christians, and especially by the clergy for the Eucharistic liturgy. In early Medieval Europe it was also normally worn by secular clergy in non-liturgical contexts." - (en.wikipedia.org 24.08.2020)