A drip bag has a body formed of a water permeable sheet, an openable upper end, and hook members formed of a plate-shaped material on outer faces of two opposing body surfaces. The hook member includes: an upper stuck part adhered to the body along its opening in an elongated shape; a center part located below the upper stuck part at the body center in its width direction not to be pulled out; and a hook part not adhered to the body. Two oblique folding lines are formed on the upper stuck part with a center line therebetween, and being more spaced from the center line while extending from a lower to an upper portion of the upper stuck part, the center line bisecting the body in its width direction. A vertical folding line is formed downwardly from immediately below a lower end of the oblique folding lines.