The inside of the pillow is made of microfiber cotton, giving you a smooth and comfortable feeling, ensuring proper ventilation for sensitive skin like babies. With anti-bacterial, anti-dust and anti-irritation properties, especially pillow is soft, breathable, supports neck and helps blood circulation to the brain well. The 100% cotton outer fabric, which is anti-fur, makes it very effective for evaporation, giving a fresh, smooth and dry feeling in all different weather conditions.