From Hindupedia, the Hindu Encyclopedia
By Swami Harshananda
Every dvija is expected to undergo the sacrament of upanayana and wear the yajñopavīta on his body always. The normal and permanent way of wearing it is to put it on the left shoulder and allow it to hang below the right armpit. This mode of wearing is called upavīta.
- The Concise Encyclopedia of Hinduism, Swami Harshananda, Ram Krishna Math, Bangalore