1. Fabric: This sun protection mask is made of a lightweight and comfortable polyester fiber fabric. It is soft and skin-friendly. It has functions of absorbing sweat, wicking it away, and drying relatively quickly, and it can block ultraviolet rays to a certain extent. Its lightweight texture makes the neck feel less burden. 2. Design for various sizes: This sun protection mask is equipped with an adjustable cord and features a four - way stretch design to enhance elasticity. The adjustable cord can be used to adjust the size to suit different head and face sizes, and it tends to stay in place even during strenuous exercise without easily slipping off. 3. Washing instruction: It is suggested to wash it by hand. 4. Fixing method: It uses elastic fixation. 5. Product type: It is a neck gaiter, with the type being Foulard - 01. 6. Distinctive design: It is soft and fits the skin relatively well. In summer, it can provide some shade for the head, block ultraviolet rays to some degree, absorb sweat, offer protection against sunlight, sand, dust, and even mosquitoes to a certain extent. On windy days, one can breathe normally without having too much worry about inhaling dust.