pinned to undergarments. Because wool deteriorates rapidly in tropical climates, since 1910 those properly invested into a confraternity may wear properly blessed scapular medals with the depiction of Jesus with his Sacred Heart on one panel and Mary on the obverse. It is acceptable to wear a metal scapular medal, though one must be invested with the cloth scapular first. The Sisters of Carmel maintain: Pope Pius X expressed his preference for the cloth scapular. Pope Benedict XV proclaimed the church's strong preference for the cloth rather to be worn than the medal. This preference is because cloth is important to the sign value of the scapular as a garment, a habit. Enrollment Unlike typical sacramentals, scapulars are not merely blessed, but need to be invested by a priest to enroll the faithful. Any Catholic priest may invest a baptised Catholic with the Brown Scapular. Lay people are unable to bless a Scapular. There is a form of the blessing and investiture in the Book of Blessings which will normally be found in any Catholic parish. The most recent Rite for the Blessing of and Enrollment in the Scapular, approved in 1996 by the Congregation for Divine Worship and the Discipline of the Sacraments, is available in booklet form, the "Catechesis and Ritual for the Scapular of Our Lady of Mount Carmel", published in 2000 and distributed by ICS Publications. The short form of the investiture is as follows: Receive this Scapular, a sign of your special relationship with Mary, the Mother of Jesus, whom you pledge to imitate. May it be a reminder to you of your dignity as a Christian, in serving others and imitating Mary. Wear it as a sign of her protection and of belonging to the Family of Carmel, voluntarily doing the will of God and devoting yourself to building a world true to his plan of community, justice and peace. According to a 1996 doctrinal statement approved by the Congregation for Divine Worship and the Discipline of the Sacraments, "Devotion to Our Lady of Mount Carmel is bound to the history and spiritual values of the Order of the Brothers of the Blessed Virgin Mary of Mount Carmel and is expressed through the scapular. Thus, whoever receives the scapular becomes a member of the order and pledges him/herself to live according to its spirituality in accordance with the characteristics of his/her state in life."