PROBLEM TO BE SOLVED: To provide a wearing device for cooling and warming which allows arrangement of a heat storage member to be fitted to various parts desired by a user.SOLUTION: The wearing device for cooling and warming includes: a flexible roughly cylindrical body elastically stretchable at least radially and extending in a longitudinal direction and a flat heat storage member mounted in the roughly cylindrical body and having a dimension configured such that the size in the width direction of the heat storage member is larger than the inner diameter size of a non-stretch part of the roughly cylindrical body. A first engaging part is formed on the inner surface of the roughly cylindrical body, a second engaging part is formed on the surface of the heat storage member, and the heat storage member mounted in the roughly cylindrical body is positioned and held in the roughly cylindrical body by elastic contraction force from the stretched roughly cylindrical body and an engagement structure between the first engaging part and the second engaging part.COPYRIGHT: (C)2013,JPO&INPIT【課題】使用者の欲する様々な部位に蓄熱部材をフィットするように配置することのできる保冷・保温用装着具を提供する。【解決手段】少なくとも径方向が弾性的に伸長可能であって長手方向に延在するフレキシブルな略筒状体と、略筒状体の中に装填される蓄熱部材であって、当該蓄熱部材の幅方向のサイズが略筒状体の非伸長部の内径サイズよりも大きいように寸法構成されている扁平な蓄熱部材と、を備える保冷・保温用装着具であって、第一係合部が略筒状体の内面上に形成されるとともに、第二係合部が蓄熱部材の表面上に形成され、略筒状体の中に装填された蓄熱部材は、伸長している略筒状体からの弾性収縮力と、第一係合部及び第二係合部の間での係合構造とにより、略筒状体の中に位置決め保持される。【選択図】図1