About this item80% Visco Elastic Foam With 20% Polyester Gel FiberWhat Makes Our Neck Pillow Distinguished – Different from 100% shredded memory foam pillow. Adoric adopts 80% Visco Elastic Foam with 20% Polyester Gel Fiber to achieve a perfect balance between softness and support. Rebound more quickily comparatively and stay its shape after time.Adjustable Shredded Memory Foam Pillow – Adoric adds about 400g more filling than other products to make sure that every customer can find his/her perfect comfortable loft with our pillows for sleeping by adding or removing foam. This won’t fail you if you love very firm and high pillow, and for those who love low pillow, you can even make 2 pillows from our 1 pillow. This is an absolutely valuable investment.Personalized Pillows for Sleeping – Made from shredded memory foam, Our bed pillow provides personalized support to your head, neck and shoulders, perfect for side sleepers, back sleepers and stomach sleepers.Washable Cover – Breathable and washable bed pillow cover adopts 60% polyester with 40% rayon derived from Bamboo to keep you cool all night and wake up refreshed.Satisfaction Guaranteed- If you don’t satisfied with our pillow within 100 nights, please contact us directly.