A filakto (Greek: φυλακτό) is an Eastern Christian sacramental that is pinned to one's clothing in order to ward off Satan.
[1][2] Always adorned with a Christian cross, they are usually made by monastics, who fill them with materials considered holy.
Filakato can be edged with small beads or made of cloth.
[3] It is typically given to newborns to protect them from evil, and many adults continue to wear it.
When worn by babies, the filakto is typically pinned to the clothes at the left shoulder blade.