WHY CHOOSE NICEEDAY LUMBAR SUPPORT PILLOW?s With taller &thicker design, NICEED Lumbar support pillow for office chair from a greater surface area, including stiffness and tension in the mid- and lower-back region. The contoured shape supports your back's curve for proper spinal alignment and to promote posture. 100% memory foam cushion lumbar support for car has 3D mesh breathable design that offers support and comfort for ergogenic positioning,regulate temperatureand. A fabrication known for cushion and bounce, memory foam holds your lower back in proper posture. 3D ergonomic design One main lower breathable mesh part. Extra thick and wide. our ergonomic pillow is made to fit the spine’s curve and the body’s form. Two higher parts on two sides gently hold front your waist. The impression-making effect of memory foam will also take pressure off your spine Application Fields This seat pillow is suitable for office chair, car seat, wheelchair,recliner, gaming chair, any home chair or seat on a bus, airplane or train. And backrest pads is suitable for drivers, teachers, students, people need wheelchair, pregnant women, office workers etc. Reliable customer service Tips: Since it's temperature sense memory foam cushion, it's normal that cushions become harder in low temperature, cushion's softness will be adjusted by user or ambient temperature