Pain relief The ergonomically shaped lumbar cushion can fill the space between your waist and the bed, keeping your legs, buttocks and spine in ideal alignment while you sleep, reducing pressure on your back and relieving back and hip pain . It can also be placed on the lower leg or below the knee to help you relax your muscles. Comfortable thickness Our updated back support pillow is not flat or too thick like other lumbar pillows, but has just the right thickness to adequately support the natural S-shaped curve of the spine and keep your waist and back comfortable. The thickness of the cushion is just right and prevents you from sliding out of your seat when using it in the car, ensuring a safe journey. Comfortable and breathable Unlike other ordinary lumbar cushions that make you sweat all night, our lumbar cushion is made of viscoelastic high-tech foam infused with cooling gel that can spring and play a good supporting role, allowing you to sit comfortably. The 4D mesh fabric keeps your waist and back cool and breathable for a good night's sleep. Multifunctional use This memory foam gel cushion can provide maximum support for different sleeping positions, suitable for all back, side and stomach sleepers, as well as for older people and pregnant women. It is also a practical gift for family and friends with spinal/back problems. Use it for your bed, office chair, car seat, sofa and much more. Removable and washable pillow cover Our memory foam pillow cover is removable with a zip, machine washable and easy to clean. The memory foam is made of polyurethane, so it is safe for use by pregnant women or children. Ergonomically shaped back cushion: The lumbar cushion adapts perfectly to the natural curve of the lower back and provides optimal support. Comfortable material: The cushion is made of durable, healthy memory foam that absorbs shocks and provides comfortable support when sitting or lying down. Breathable and removable cover: The 4D mesh cushion cover is hypoallergenic, heat-dissipating and washable, with an invisible zip for easy cleaning. Lightweight and portable: Weighing only 385 grams, the pillow is easily foldable and fits easily into luggage, ideal for travel and commuting. Versatile: Ideal for office workers and drivers; also suitable for side sleepers, back sleepers, stomach sleepers and pregnant women to promote restful sleep.