What it is: A gentle knotted headband designed to be delicate on your hair. What it does: This crease-resistant hair tie made from specially selected elastic with a Slipsilk covering. The Slipsilk is made with the highest grade (6A) of long fiber mulberry silk with a thickness of 22 momme, and enforces the strictest quality guidelines, including nontoxic dyes. Style Name: Slip Knot Headband. Style Number: 5787120.