The waist belt of the present invention provides a waist belt that can accurately transmit the force accompanying the wearer's fixing motion to the belt body and easily and accurately perform the wearing. A waist belt comprising: a belt body 1, which is formed of a member having stretchability in at least a part of the longitudinal direction； and respective locking portions 2, 3, which are mutually locked to both ends of the belt body 1； and The waist belt is configured as follows: a pair of insertion support parts 4 and 5 is provided, which is equivalent to the case where the belt body 1 is worn on the wearer, and is arranged inside the wearer's side and near each of the locking parts , You can just insert the thumb of the wearer.本發明之腰帶提供一種可將伴隨被穿戴者之固定動作之力切實地傳達作用於帶本體而容易且準確地實行配戴之腰帶。一種腰帶，其具備：帶本體1，其由在長度方向之至少一部分具有伸縮性之構件形成；及各卡止部2、3，其等互相卡止於該帶本體1之兩端部位；且該腰帶係如下之構成：具備一對插入支承部4、5，其等於將上述帶本體1穿戴於被穿戴者之情形時，配設於被穿戴者側之內側且上述各卡止部之附近，可僅插入上述被穿戴者之拇指。
