A multiple chamber self-inflating pad having a fluid impervious first chamber defined by a first flexible panel and an intermediate panel in which a first resilient member is disposed and to which the resilient member is bonded. The process is based in part on the use of a base-promoted dynamic epimerization of a chiral nitro center. An expandable ice chest member is operative to be received upon the seating area defined by the portable chair and further preferably includes a lid member that can engage with the back rest of the portable chair.