A kind of camisole, being suitable for, which prevents from sitting one of the seating unit of what one user, drops, comprising a constraint cloth, respectively in Y-shaped and connect the constraint cloth a what top the following lower drawstring of upper drawstring and what, two be connected to the pull straps of the constraint cloth two sides, two be separately positioned on the fixing buckle of drawstring and the lower drawstring on this and two be separately positioned on devil's felt of the pull straps such as this. In use, drawstring and the lower drawstring are rotating around to the seating unit Hou side and equal fixing buckles are firm combines by this on this, also around to the seating unit Hou side and by this, equal devils' felt is firm combines respectively for the pull straps such as this. Through the Y-shaped design of the lower drawstring, user's lower part of the body can be enabled to feel ventilative nice and cool, there is preferable using effect.一種約束衣，適用於防止坐於一乘坐單元之一使用者摔落，包含一約束布、分別呈Y字型且連接該約束布的一位於上邊的上拉帶與一位於下邊的下拉帶、二分別連接在該約束布兩側邊的側拉帶、二分別設置在該上拉帶及該下拉帶的固定扣，以及二分別設置在該等側拉帶的魔鬼氈。使用時，該上拉帶與該下拉帶分別繞至該乘坐單元後方並藉由該等固定扣穩固結合，該等側拉帶也分別繞至該乘坐單元後方並藉由該等魔鬼氈穩固結合。透過該下拉帶的Y字型設計，能夠令使用者下半身感到透氣涼爽，具有較佳的使用效果。
