A lightweight jacket is a type of outerwear designed to provide comfort and protection without the bulk of heavier coats. Typically made from materials like nylon or polyester, these jackets are ideal for mild weather conditions. They often feature water-resistant properties, making them suitable for light rain or wind. These jackets come in various styles, including windbreakers, bomber jackets, and packable jackets. They are popular for outdoor activities such as hiking or cycling, as they can be easily folded and stored in a backpack. Lightweight jackets are versatile and can be worn casually or for more active pursuits.