PROBLEM TO BE SOLVED: To enable a neckline of an ice bag user to be cooled for a long time using ice easily available even away from home.SOLUTION: An ice bag 100 for cooling a neckline of a user by being worn on the neckline of the user includes an inner bag member 20 for storing ice 30, an outer bag 10 for storing the inner bag member 20 inside, and an inner bag member connection part 21 to which the inner bag member 20 is attached. The inner bag member 20 includes a molten water discharge part 22 for discharging molten water 31 generated by the melting of the stored ice 30 to the outside of the inner bag member 20 when the ice bag 100 is worn. The outer bag 10 includes a molten water storage part 14 for storing the molten water 31 discharged from the molten water discharge part 22 when the ice bag 100 is worn at a position lower than the position where the inner bag member 20 is stored, and at a position away from the inner bag member 20 by a predetermined distance.COPYRIGHT: (C)2015,JPO&INPIT【課題】外出先でも入手容易な氷を用いて、氷嚢使用者の首回りを長時間冷却することを可能とする。【解決手段】使用者の首回りに装着することで、当該使用者の首回りを冷却する氷嚢100は、氷30を収容する内嚢部材20と、内嚢部材20を内部に収容する外嚢10と、内嚢部材20が取り付けられる内嚢部材連結部21とを備え、内嚢部材20は、氷嚢100が装着状態であるときに、収容されている氷30が融解したことによる融解水31を内嚢部材20の外部に排出する融解水排出部22を有し、外嚢10は、氷嚢100が装着状態であるときに、内嚢部材20が収容される位置よりも低位置、かつ内嚢部材20と所定の距離を隔てた位置に、融解水排出部22より排出された融解水31を収容する融解水収容部14を有する。【選択図】図3