PROBLEM TO BE SOLVED: To provide a cooling device capable of preventing the heat stroke by cooling the buttocks, the inguinal region, and the back for suppressing a body temperature rise under high-temperature and high-humidity environment in the summer, mitigating stress of the mind and body by promoting heat dissipation and evaporation of perspiration, and allowing a user to arbitrarily and easily attach/detach it without any labor.SOLUTION: A cooling device 101 includes a pocket part 5 on a back face of a holder 1 that can be clipped to clothing, in a state of hanging down to a body side of a users body U and clampedly connected by a heat-dissipation assist plate 3, and similarly, the lower part of the heat-dissipation assist plate 3 and the pocket part 5 are clampedly connected by a fixture 4. The cooling device 101 can be thus configured to removably store a cold insulator bag 2 storing a cold insulator C with respect to the pocket part 5.SELECTED DRAWING: Figure 1COPYRIGHT: (C)2018,JPO&INPIT【課題】夏季の高温多湿の環境下における体温上昇を抑えるべく、臀部や鼠蹊部、他、背中を冷やし、且つ熱放散、発汗の蒸発を促すことで、心身のストレスを緩和し、熱中症を予防することができ、任意で手間無く容易に着脱できる冷却具を提供する。【解決手段】冷却具101は、着衣に挾着できるホルダー1の背面に、ポケット部5を使用者身体Uの身体側に垂下る形状で設け、熱放散補助板3で挟んで結合し、同じく、該熱放散補助板3の下部と該ポケット部5を固定具4で挟んで結合し、保冷剤Cを収容した保冷剤袋2を該ポケット部5に挿脱自在に収容できる構成とされる冷却具101。【選択図】図1