Ultra Thin : Only 2.3 inch high, this slim pillows features a low profile for stomach and back sleepers. Provides balanced support without being too high or too firm. It offers cervical spine support, improves breathing comfort, and helps reduce pressure on the face for stomach sleepers, contributing to a more restful sleep Premium Material : Made of 100% cotton cover which features soft, breathable, skin-friendly and quiet. Filling with 3D microfiber stuffing, it's soft and fluffy, provide excrptional support and comfort. It's the perfect stomach pillow which is flat while supportive, and support over time 3D Cube Design : Keeps the stuffing of this silm pillow evenly distributed and won't clumped after washing, each cube is three-dimensional and supportive without collapsing and flattening. Provide ideal balance of softness and support, like sleeping on a soft cloud Easy Care : This ultra thin flat pillow is machine washable, it's easy to keep it clean.