Ergonomic Design The unique ergonomic design of this 3D cloud-shaped waist pillow supports proper lumbar spine curvature. The 3D air mesh lumbar pillow with resilient filling contours to your body shape without deformation, making it ideal for side, back, or stomach sleepers. It offers excellent lower back support and helps reduce fatigue during driving or working. High-quality Materials The lumbar support cushion is made of 100% high-quality and comfortable memory foam, providing great comfort for the lower back. It is hygienic, durable, free from chemical odors, and maintains its shape over time, offering consistent support and spinal alignment. (Size: 49 x 27 x 13.5 cm) Multiple Uses This pillow is suitable for use at home, in wheelchairs, office chairs, beds, car seats, and airplane seats. It fits a variety of seating types and supports ergonomic comfort for the neck and waist. It helps reduce strain on back muscles and ligaments in various sleeping positions. It can also be placed under the calf or between the knees as a leg spacer. Removable & Washable Cover The breathable and soft inner cover enhances comfort and prevents overheating. The washable cover allows airflow to keep your back cool and dry, even after extended use. Pain Relief This lumbar pillow supports the natural curve of your back to promote proper spinal alignment and healthy posture. Its ergonomic design fills the gap between the waist and the surface you're lying on, supporting the lumbar curve and helping relieve discomfort in the lower back. It is especially beneficial for those who frequently change positions or prefer sleeping on their side.