A simple tunic, made from bleached linen or white silk. It should be white in colour, as it is used to signify purity. It should have long wrist-length sleeves, a neck opening and be floor- or ankle-length, with side gores/gussets for ease of movement .i.a loose white basic dress that can be worn over your other clothes.
The alb is the simplest and most basic of vestments, worn by all grades of clergy, and is always worn with an amice. A belt of braid or white rope called the cingulum is worn over the alb.