To provide a garment cushion member exerting impact resistance only when necessary, causing no bulkiness when unnecessary, sufficiently protecting joint parts; and to provide a garment with the garment cushion member.

The garment cushion member is obtained by housing an elastic body in a hermetical and flexible bag body and provided with a stop valve at the outer surface side of the flexible bag body, wherein the flexible bag body is provided with a small-allowance space formed so as to charge air in a space between the elastic body and the bag body.