The Porter Flex series uses nylon ripstop fabric that is also used in military ponchos and outdoor wear. Since it is packable type that can be folded for compact storage, it is lightweight and portable, it is practical not only for everyday use, but also for a variety of occasions such as travel and outdoor activities. Lightweight and portable, this packable 2-way helmet bag can be folded for compact storage. In addition, there is no three-dimensional pockets, and it has a light finish, so it can be used easily by people with a wide range of layers. Designed with pockets on the outside and inside to make it easy to organize small items. The included shoulder strap can be worn over the shoulder or across the body. It is a revolutionary item that can be folded and carried around anytime, anywhere. Product Overview: Main opening: Interior zipper / zipper pocket x 1, open pocket x 2.