Abstract: A comfort liner including a sealing layer of material, a plurality of bubble members formed on the sealing layer of material, and a thermal material formed within each of the plurality of bubble members. The thermal material is a heat absorbing material whose absorption of heat will provide cooling within a range of at least 70 degrees F. to 85 degrees F.

Abstract: A variable size footwear includes a sole, an upper fixed to the sole and an nsole overlying the sole within the upper. An inner sock of elastic material is fixed to the sole and/or insole. The sock in an unstressed state is smaller than the upper, but is expandable to a size conforming to interior walls of the upper. The sock is fixed at an upper edge thereof to the upper.

Abstract: An inflatable life vest comprises two sheets of polymeric material. The es of these sheets are sealed to form an inner cavity with a plurality of discrete, inflatable chambers disposed in a U-shaped pattern to define collar and chest portions of the life vest. A manifold connects to an inflation source and has a plurality of openings. A check valve connects each manifold opening with one of the chambers to permit inflation medium flow into the chamber and to block inflation medium flow outwardly from a chamber into the manifold. This construction isolates the chambers from one another so the rupture of one chamber does not affect the ability of the other chambers to be buoyant.