Material and construction Outer fabric: quality polar fleece that is soft, skinfriendly, breathable, and comfortable. Inner core: pearl cotton that is fluffy, full, and elastic, helping the pillow maintain shape and resist deformation over time. Ergonomic design Triangular back support cushion with convenient side pockets. Contours to the curves of the body to protect the waist and back during activity such as reading, browsing, gaming, or watching TV in bed or on a sofa. Multifunction and compatibility Suitable for people who sit for long periods. Ideal for beds, office chairs, windowsills, sofas, and other leaning surfaces. Uses: back pillow (upright), bed pillow, or leg pillow to elevate the legs. Provides targeted support for the neck, shoulders, back, and waist, helping to relieve pressure. Easy to clean and maintain Zipper design with independent pillowcase and independent pillow core. Removable and machine washable; do not bleach. Simple to lean on or lie down with, and easy to place anywhere you need extra support.