Relief Parenting is a shoe-free center. These spa-quality slippers are available, machine washable, and come individually wrapped in a drawstring cloth carrying case to keep you comfortable and cozy. This pair can head home with you, or be labeled with your name and kept at the Center for future use. 

From Amazon:

• ✔ COMFORT: These modern and luxurious cotton velvet slippers feature a thick upper and inner sole lining of the softest cotton velvet material. As opposed to coral fleece and terry cloth, these cotton slippers are breathable and adjusts to your foot's shape over time. The bottom soles are made from a thick EVA material that provides extreme comfort throughout the whole day.
• ✔ SAFETY: Each slipper has an EVA non-skid sole to ensure that you will be safe from slipping in the bathroom or on any other dry or wet surface.