These luxurious, hypoallergenic scrunchies protect delicate hair from the damaging tugging caused by traditional hair ties. Its wide surface area and high-grade silk fabrication reduces ridges and promotes soft, healthy locks. About SlipAfter she was prescribed a medication that had the unfortunate side-effect of thinning her hair, Fiona Stewart's doctor suggested that she sleep on a silk pillowcase to minimize breakage and loss. Dissatisfied with what she found in the marketplace, Stewart decided to source her own silk and create her own. Noticing immediate improvements to the health and radiance of both her hair and her skin, she decided to found SLIP - a line of luxurious, hypoallergenic shams and sleep masks that protect from the creases and pulling often caused by standard-issue cotton.