Slip Reusable Double-Sided Face Covering Silk Face Mask, Pink, Double sided silk with a 100% cotton inner layer and adjustable nose wire. Made with adjustable straps, slip face coverings are designed to fit your face in comfort. The slip reusable face covering is neither a medical device nor personal protective equipment (PPE). It should not be used by healthcare professionals, in healthcare or clinical environments or settings, or when the use of a medical device or PPE is required. The slip reusable face covering is not designed to prevent or protect from any form of risks to a person's health or safety, illness or disease (or otherwise).