Breathability refers to the ability of a material to allow air and moisture to pass through it. This property is important in various applications, such as clothing, tents, and building materials. A breathable fabric, for example, helps keep the wearer comfortable by allowing sweat to escape while preventing outside moisture from entering. In the context of outdoor gear, breathability is crucial for maintaining a comfortable environment. Gore-Tex is a well-known brand that produces breathable waterproof fabrics, making it popular for jackets and footwear. Understanding breathability helps consumers choose products that enhance comfort and performance in different conditions.