Cord of St. Joseph for Chastity
This white cord ... worn by young men about their waist commemorates the seven joys and seven sorrows of St. Joseph. Instructions included with the cincture advise the owner to add 6 additional knots to the end knot as a reminder of these joys and sorrows. From the earliest Christian times, the wearing of a cord or cincture has always been a sign of chastity, mortification and humility.
Here is a positive way for young men to commit to chastity and to call down the assistance of St. Joseph, whose entire life was lived with heroic virtue. See also the Cord of St. Philomena for young ladies.