GiGi--Bone Shaped Driving Comfortable NASA Space Memory Foam Lumbar Pillow|Lumbar Cushion in travel/office/home/car--Gray -- Xmas Present Comfortable and fatigue relieving:Designed according to human body engineering,filling with the new space memory cotton core, high density and good flexibility, more comfortable by reducing impact to zero on body. Moderate thickness,fill and support waist Takes clothes with small holes which are ventilated. This cloth is water proof, anti oil, anti pollution, easy to clean.