About this item [Breathable material] It is made of lightweight, breathable, fast drying and durable polyester fiber. Wearing a helmet helps reduce fog. [Excellent structure] This mask is sturdy and durable, and it can be used for many years due to high-quality sewing technology. This material stretches well, and there are many ways you like to wear it. It has pores in the material. Comfortable and breathable. [Elastic and universal size] The balaclava headwear is retractable, suitable for most adult men and women, or any type of helmet and hat. [Practical] Balaclava is changeable and suitable for all seasons. It can be worn alone or under any type of helmet and hat. Provides full protection for your head, face or neck. It can block dust, sunlight, ultraviolet light or snow. Size: suitable for head circumference of 54-58 cm [Suitable] Light and durable Balaclava is very suitable for spring, summer, autumn and winter: skiing, motorcycle, cycling, running, hunting, fishing, climbing, hiking, hiking and other outdoor activities.