is further contemplated that the cavity having seal 617 could have additional seals such as pattern seals formed within it not shown where wrap 600 is formed of at least four sheets of material another chamber the exterior chamber for example may also include additional seals fig7 is a depiction of the exterior side of wrap 600 identified as 600 b as shown in fig7 seal 618 is created between at least two sheets defining a cavity seal 618 extends from the perimeter of lobe 603 across the width of wrap 600 and nearly to seal 610 which in fig7 is the seal defining the perimeter of the cavity leaving gap 618 a between the distal end of seal 618 and seal 610 it should be apparent that additional seals could be added that would alter the perimeter of the cavity but for explanatory purposes the seal 610 will be identified as the perimeter of the cavity additionally a seal 619 is made in the cavity extending from the perimeter of the cavity in lobe 601 across the width of wrap 600 nearly to seal 610 of the cavity leaving gap 619 a consequently when fluid is pumped into the external cavity through hose 612 the fluid is forced along seal 618 through gap 618 a up through the wrap into lobes 601 and 602 then through gap 619 a and back across the wrap moving from lobe 602 into lobe 601 across the top of seal 619 in practical application when an individual has secured the wrap to his foot ankle and lower calf as explained above the movement of fluid.