Pure Silk Knot Headband Slip Black White Stripe。NWT Slip Pure Silk Headband Black and White Striped New NIB New in box. Smoke free home MAKE A STATEMENT WITH SLIP™ Black knot headband | One-size | Lightweight front knot design | Made with 100% slipsilk™ | Specially selected elastic with a slipsilk™ covering. We developed the slip™ anti aging, anti sleep crease, anti bed head, pure silk pillowcase because slipsilk™ can help to reduce friction, which can reduce stretching and tugging on delicate facial skin. So what could be better than sleeping on a slip™ pure silk pillowcase? Slipsilk™ all day long with a luxurious slip™ pure silk headband; featuring a twist or knot detail and specially selected (slipsilk™ covered) elastic, to ensure a comfortable fit.