To provide a bag in which ringing tone of a portable telephone is well audible, taking out of the telephone is easy and a situation to cause telephone troubles scarcely happens.

A pocket 2 having a shape corresponding to that of a portable telephone D is attached to one of front and rear surfaces 10a, 10b of a bag body 1. A lid member 3 is attached to the bag body 1 close to the open end of the pocket 2, and the lid member 3 is made to be fastened and separated to and from the pocket 2 by a locking member 4. The pocket 2 is formed by a front part 20, both side parts 21, 21 and a base part 22, and the both side parts 21, 21 and the base parts 22 are preferable to be sewn on the bag body 1.