is to be noted that the matrix of the connections 39 extends into the ripples as brought out earlier the showing in fig5 is only of one of the layers the layer 31 making up the liquid bladder the tube for delivering pressure to the air bladder tube 43 is included and is part of the showing fig7 shows the manner in which the adjacent liquid and gas tubes communicate with their respective bladders even though they are provided adjacent one another it will be noted that the layer 33 has a common border with the layer 31 and 32 but that there is not a matrices of connection points between the layers 32 and 33 i e in the gas bladder this gas bladder when pressurized presses the layer 31 against the body part for good thermal contact in this construction it does so indirectly through the layer 32 by pressing the full liquid bladder against the body part the tube cord 23 directs the various tubes into vest garment 16 this vest garment includes not only a covering 46 but also three layers defining gas and liquid bladders as is typical fig8 illustrates the outlying and connection pattern for one of the liquid bladder layers this layer is defined by a coated flexible material as described earlier and is folded over with the rest of the vest garment generally at locations represented by the lines 47 and 48 the result is that the side edges 49 and 51 respectively are positioned contiguously respectively to side edges 52 and 53 the border represented at 54 is then located at the small of the back.