Container

An object of the present invention is to provide a resin cup-shaped container that can be folded without providing a portion that serves as a fastener while achieving both a thickness for maintaining strength of the container and a shape when folded. A container 10 of the present invention is a cup-shaped container 10 molded of a resin material and having an opening 11, and has a plurality of folding assistance parts 40 that are stripe-shaped recesses or protrusions assisting folding, When a side surface is defined as a side surface 20, the side surface 20 is provided with a first side surface part 21 formed near the opening 11 and a second side surface part 22 formed with a folding auxiliary part 40, A plurality of bending auxiliary parts 40 formed on the second side surface part 22 are formed so as to extend in the longitudinal direction H....