A bag assembly includes a pliable housing having a first panel secured to a second panel by a seam so that a cavity is formed between the first panel and the second panel, the seam encircling the cavity. A first tufting couples together the first panel and the second panel at a location spaced apart from the seam so that the cavity encircles the first tufting. In one embodiment the first tufting can circular. A first port is coupled with the pliable housing and communicating with the cavity.