Review on Kiefer Cushion Collar 2 Inch Yellow by Andres Imaging

My son is 6 years old, he has cerebral palsy. He LOVES the water which was great growing out of his old neck float. It was snug around his neck (or so we thought) until we realized he would only throw up in the water when it was on. At first we thought it was acid reflux or just being in the water so we experimented and he didn't vomit on the days we just held him underwater when he was in it. It's been 2 months now and it's too late to return it and we hardly ever use it.