[Breathable Memory Foam]:The Waist Pillow is designed to allow air to circulate,keeping you cool and comfortable while sleeping or sitting [Lumbar Support Pillow]:This Bed Sleeping Pillow provides support for the lumbar area,relieving tension and discomfort while sitting or sleeping [Memory Foam Filling]:The cushion is filled with memory foam to provide special support and comfort based on your body shape [Removable and Washable]:The cushion cover is removable and washable,making it easy to keep clean and maintain its shape for a long time [Wide Application]:This lumbar support pillow can be used for long drives,long sitting hours in the office or during our daily sleeping hours,whether it is on the back or on the side,this product provides a good fit