It is very important that you get the correct measurements so that you get the right sized vest. I initially had the large
vest, then lost a huge amount of weight and am now a small adult
vest. The old vest was riding up under my chin and was very uncomfortable until I got my new vest.
Here is the great thing about the Vest, if any parts break or you need a new vest, they replace them without any extra cost. It is under a life time warranty.