To provide a simple bag provided with practicability and excellent in fashionability.

An inner bag 3 is provided at least in the front region or the rear region of an interior space in the direction of the width of a bag body 1, while the bag body 1 and the inner bag 3 are constituted of see-through resin materials. The bag body 1 and the inner bag 3 are transparent or translucent. The inner bag 3 disposed in the front region is removably fitted on a front wall 10 that constitutes the bag body 1. Letters and patterns are written and formed on at least either the front wall 10 or a rear wall 11 that constitutes the bag body 1, while leaving a see-through portion. Letters and patterns are written and formed on at least either of the front wall portion 10 or rear wall portion 11 that constitutes the inner bag 3, while leaving the see-through portion.