Eliminates the feeling of unstable suspension of the face cover and provides a comfortable fit after installation Fabric enhances stability and a comfortable fit, improving compatibility with flight glasses Lightweight design adds no extra burden during wear Prevents easy sliding of the forehead rest and increases comfort; the widened positioning slot can be adjusted to the position according to needs Use scenarios On long flights or during travel when wearing a face cover with flight glasses, the stable suspension and comfortable fit stay securely in place Daily wear when glasses are also worn, offering a lightweight, stable fit for extended periods Activities that involve a forehead rest, where the adjustable widened slot lets you set the most comfortable and secure position for your needs