It is not uncommon for people of faith to wear special clothing for religious observances. When Mormons visit the temple and worship there they wear special, white clothing. Because of the sacred, special nature of a temple it is not appropriate to share pictures of what this clothing looks like. Temple clothing is plain and simple and helps patrons focus on their worship of God while inside a temple.
Madrid, Spain Temple.
Mormons also have special underclothes that people outside our church refer to as “Mormon underwear.” There’s really nothing special about these undergarments other than the symbolism they carry. Mormons wear these garments as a reminder of the covenants and promises they have made with God.