Almost invisible! Flexible and easy to use, this see through design without bulky hardware is very attractive and hardly noticeable, which is important in building self-esteem and confidence. Designed to be comfortable and yet extremely durable, this Clear Chest Support offers positioning for the individuals who benefit from having their upper body stabilized, and hips held at a proper angle. this chest support is not designed to be used as a restraint. It is used for positioning assistance for those individuals with low muscle tone. It may be used with most standard or high back wheelchairs,strollers or custom. Sizes: Measure seated: shoulder to hip Infant: 6''-8'' X-small: 8''-10'' Small: 10''-14'' Medium: 14''-17'' Large: 17''-20''