Each pad has a snap to fasten to your underwear. The plain fleece side goes against your underwear and the pretty side faves your body. Topper: 100% cottonBacker: Fleece Quick washing instructions:Pre-rinse in cold water if necessary. Wash along with your regular wash at 30*C.Do not use fabric softener.Do not tumble dry. • easy to clean• more comfortable than disposable• environmentally friendly. Sn02