The ``PORTER FLEX'' series has a packable design that makes it highly portable and compact, and can be used in every scene of life. The main material is a light and strong nylon ripstop fabric, also known as parachute cloth. By weaving thick nylon threads into a lattice pattern, this fabric has a tear-resistant effect that prevents the tear from spreading even if a hole occurs, making it a fabric used for military ponchos and outdoor wear. In order to make the most of the foldable, packable design, we purposely did not create three-dimensional pockets, and by using plastic instead of metal for various parts, we created a flat design and lightweight design. The name tag uses reflective material as a design point. All of the items we offer are designed with military motifs, which sets us apart from the packable bags in the world. Military-specific items include 2-way tote bags and helmet bags once used by Air Force pilots, bomb sacks and duffel bags for storing and carrying equipment, and 2-way shoulder bags inspired by his own ammunition bags for carrying things such as cannonballs. Although it has a sophisticated design that is easy to match with any coordination. The colors are black, olive drab, and navy, which are reminiscent of typical military colors.