Description: [Ergonomic U Shape Design]: This neck pillow features a U shape support that ensures your head stays in place whether you're side sleeping or leaning back. Its zoned design provides comprehensive support for your head, neck, and shoulders, eliminating gaps and ensuring a comfortable rest without any disturbances [Premium Material Composition]: Crafted with quality PP cotton filling and a cotton linen cover, this Neck Support Pillow offers a soft texture. The material is breathable, ensuring long time comfort without deformation even after extended use [Adjustable Elastic Strap]: Equipped with an elastic strap to secure the office chair pillow in place, it easily adapts to different chair models without slipping or moving around. This feature makes it great for office chairs or school desks during breaks [Optimal Height & Breathability]: Designed with an ideal height for 3D support, the sloped surface elevates your head comfortably in any sleeping position. The enlarged central hollow allows for good ventilation, promoting easy breathing while being washable for easy maintenance [Convenient Design]: The zipper ensures smooth operating without snagging while maintaining the pillow's sleek appearance. Its sturdy construction is resistant to wear, making it both practical and stylish for everyday use at work or school Specification: Material: Cotton Linen, PP Cotton Size Chart: 40cmx35cmx24cm/15.75inchx13.78inchx9.45inch Package Includes: 1 Office chair neck pillow Note: Please allow slightly errors 1-2cm differences due to manual measurement.