1.Material: 95% nylon+5% polyester， breathable， soft and skin-friendly.2.Round Protection: This mask can cover the front and rear neck to protect the neck from sunburn. design not block sight line， and can protect the eyes region.3.Comfortable to Wear: Elastic， breathable， quick drying and sweating absorption and sun protection that make you feel comfortable and cool.4.One Size Fits Most: lightweight and fit， elastic ear rope can adjust to fit all head sizes and face shapes. Can comfortably put on a hat and sunglasses at the same time.5.Suitable : Suitable for participate in various outdoor activities for summer， such as cycling， running， outdoor yoga， gardening， fishing， climbing， hiking， camping and so on.