According to Catholic tradition, Our Lady gave the scapular to St. Simon Stock, the Father General of the Carmelite order, in the thirteenth century. Mary appeared to St. Simon in a vision, held out a scapular and said to him, ' . . . he who dies in this will not suffer eternal fire.'
Does this mean if you wear the scapular you get into heaven no matter what your actions? Of course not!
The scapular is not a “get out of hell free” card or a magical charm. It is an exterior sign of an interior fidelity to Christ and trust in his Mother's love and intercession for her children.