slip The Turban in Leopard. slip The Turban in Leopard. Double lined with smooth slipsilk inside and out, the slip Pure Silk Turban helps protect your hair from the effects of friction throughout the night. Timeless design featuring a twist detail and made with specially selected silk covered elastic to suit a range of head sizes.. In Leopard. Designed for curly and/or thick hair - suitable for all hair types. May be a loose fit on short and/or fine hair. 100% silk (exclusive of elastic) with non-toxic dyes. SLIP-WU18. 850004304631. In 2003, slip Co-Founder and CEO Fiona Stewart was prescribed acne medication which resulted in extremely sensitive skin and thinning hair. Her dermatologist suggested sleeping on a silk pillowcase. Unable to find one, she sourced the best silk she could find and wrapped it around her pillow. The results were dramatic and immediate, she's never looked back. She had stumbled upon a long-forgotten beauty secret - and slip was born.