What role do the connection parts on both sides of the pouch actually play?

9g is the weight of the M size pouch^[3]. By attaching straps to the left and right connection parts, you can use this pouch as a sacoche^[4]. A sacoche refers to a small, flat bag worn on the shoulder or across the body by attaching a strap. Therefore, the connection parts on both sides are used to attach straps to both ends of the pouch to create a form that can be worn on the body^[5]. When actually carrying it, you need to gauge not only the pouch, but also the weight of the strap you use and the items you will put inside together^[6].