slip Travel Jet Setter Pillow in Black. slip Travel Jet Setter Pillow in Black. Whether you're on a long haul flight or treating yourself to some much needed beauty sleep on the go - this luxurious travel pillow and slipsilk travel pillowcase will have you dreaming in no time.. Travel Pillow: 100% Polyurethane Travel Pillowcase: 100% silk. Hook and Loop Fastener: Nylon. Carry Bag: 100% Polyurethane bag, 100% woven handles. Travel Pillow: Travel pillowcase is removable and machine washable.. Carry on bag fits over a wheelie suitcase for convenience.. Travel Pillow measures approx 9.8 x 9.8 x 4.9. SLIP-WU62. 810046985021. 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.