throughout all the figures , same or corresponding elements are generally indicated by same reference numerals . insoles are provided for all common shoe sizes and configured for snug fit in the shoe . the insoles accommodate the sole of the foot in a form fit , and intended for cushioning and supporting the foot structures that are exposed to stress . the invention provides for a range of insoles as listed below ( using shoe - size 40 as an example ): 40 a : modular insole for standard foot prophylaxis ; modular insole for diverse degenerative symptoms in the foot structures , the shape of the insole varying to suit the specific symptom ; 40b : fallen plantar arch ( early stage ) as a result of the old age ; 40c : fallen plantar arch ( medium stage ) as a result of old age ; 40d : fallen plantar arch ( advanced stage ) as a result of old age ; 40e : modular insole with stirrup - type stabilization and control of the ankle joint ( also in combination with shin - bone protector ); all insole types are provided in different degrees of hardness and with zones that differ in hardness , and all may include a metatarsal truss pad , such as a metatarsal truss pad 12 , shown , by way of example , in fig2 a . turning now to the drawing , and in particular to fig1 there is shown a top view of an insole 1 according to the invention . the insole 1 has a container 6 extending from a heel region 2 through a region of the lateral longitudinal arch 3 to a region of the fifth metatarsal head 4 and from there to a region of the first metatarsal head 5 . the container 6 is filled with a gaseous ( e . g . air ) or liquid fluid , preferably a water - based liquid , and is preferably made of a soft material which is impermeable to liquids and gases , adapts to the shape of the foot and has comfortable support properties . examples as material for the container 6 include , e . g ., a gel or a foamed plastic , such as foamed ethylene . of course , a person skilled in the art is aware of a wide range of gels or foamed plastics and will utilize the type of material which is best adapted to the particular application in which the invention is to be used . as shown in fig1 b , which is a sectional view of the insole , taken along the line i - i of fig1 a valve 7 is provided at a side of the insole 1 for controlling , i . e . increasing or reducing , the amount of fluid in the container 6 . this can be done , for example , by means of a syringe , which is insertable into the valve 7 , for injection of fluid into the container 6 or withdrawal of fluid from the container 6 . to enable a user to readjust the amount of fluid in the container 6 , it is useful to provide a graduation 8 , which comprises , for example , graduation marks running transversely to the longitudinal direction of the insole 1 . in this way , the user is able to select a suitable insole for a shoe size and for foot prophylaxis , and then to adapt it individually to own personal needs . as an alternative , the container 6 may also be located only in the heel region or in the region of the lateral longitudinal arch , or from the region of the fifth metatarsal head to the first metatarsal head , or in any combination of these regions . turning now to fig2 a , there is shown a top and front perspective illustration of a variation of the insole 1 according to the present invention . parts corresponding with those in fig1 a are denoted by identical reference numerals and not explained again . in this embodiment , provision is made for a stirrup - shaped device 10 for immobilizing the talocalcaneonavicular joint and for controlling and / or stabilizing the ankle joint of a human being . the stirrup - shaped device 10 is thus secured to a rear portion of the insole 1 and projects upwards . suitably , a shinbone protector 11 is integrated in the stirrup - shaped device 10 . in a forward area thereof , the insole 1 includes a metatarsal truss pad 12 for providing an elevation in the metatarsal area whereas in the heel region , the insole 1 is raised by an insertion wedge 13 which is flattened towards the forward part . as an alternative , the area between forefoot and distal tarsus may also be designed flatter . fig2 b shows a rear view of the insole 1 . of course , the provision of the shin - bone protector 11 , metatarsal truss pad 12 and insertion wedge 13 are optional and any combination should be considered within the scope of the present invention . turning now to fig3 a and 3 b , there is shown a side and rear illustration of an athletic sock generally indicated by 14 . the insole 1 shown here extends into the stirrup - type device 15 with two vertical legs configured as entirely unitary piece . the device 15 has a medial leg 18 and a lateral leg 19 . fig3 a - b and 4 a - b also show the stirrup - type device 15 secured with a band 16 extending substantially in horizontal direction around the leg of the user . when the stirrup - type device 15 is an integral part of the insole 1 , it is formed from the same flexible plastic material as the insole . the front portion of the stirrup - type device 15 is configured as a closed front . however , the front portion may also be configured as a two piece front portion so that two pieces may meet prior to securement with the band 16 . the band 16 can extend in a substantially horizontal direction . alternatively , the band 16 can also be configured as a crossed band . rearwardly , the stirrup - type device 15 remains open . generally , the stirrup - type device 15 is from soft plastic . preferably , the stirrup - type device 15 is constructed in layers , which can be arranged in a sandwich type manner , wherein the inner - and outer layers exhibit varying grades of hardness , respectively softness . for example , the device 15 can be constructed so the layer ( s ) close to the body of the user can be made from softer material , which can be covered by a relatively stiffer plastic body 20 as seen in fig4 a - 4 b . the stiffer plastic body 20 can also be set into the stirrup - type device 15 so as to take up no dimension in addition to that of the stirrup - type device 15 . the plastic body optionally has a lateral opening 21 for ease of wear by the user . since the container 6 may also be located only in the heel region or in the region of the lateral longitudinal arch , or from the region of the fifth metatarsal head to the first metatarsal head , or in any combination of these regions , the container 6 of the insole 1 , also with the stirrup type device 15 for the athletic sock is adjustable to these foot regions . alternatively , the insole 1 can be configured in various sizes so that it covers the heel only , or the insole 1 can be sized extending from the heel to the midfoot , or from the heel to the toes . optionally , the insole 1 of the athletic sock 14 can be configured so it can be filled with a fluid material as described above . as compared to the insole 1 , the combination of insole 1 and the stirrup - type device 15 stabilizes the foot in medial - lateral direction ( supination trauma motion ) exerting pressure onto the mechano - receptors of the body and thereby activating these . this is known as “ proprioception ” which leads to autostabilization of the body . thus , with the combination of the insole 1 and device 15 according to the invention on the one hand , a prophylaxis against supination trauma is realized and on the other hand , the proprioception is raised , which is further enhanced by means of the frictional band 16 disposed in substantial horizontal position . the stirrup - type device 15 can be removably secured to the athletic sock , for example by means of a velcro ®- type fastener 17 or other type of hook and loop fastener . in an alternate manner , the stirrup - type device 15 is secured to the athletic sock in a non - removable manner , for example by being sown to the sock . in another manner , the athletic sock 14 is manufactured so that the plastic insole 1 with the stirrup - type device 15 is sprayed directly onto the sock material to which it bonds . the outer plastic layer 20 can be an integral part of the insole 1 with the stirrup - type device 15 or it can be attached to by other means . optionally , a shinbone protector 11 can also be integrated with the stirrup - type device 15 ; for example the shinbone protector can be attached to the lower end at the front of the stirrup - type device . while the invention has been illustrated and described as embodied in an insole , it is not intended to be limited to the details shown since various modifications and structural changes may be made without departing in any way from the spirit of the present invention .
an insole which extends from the toes to the heel includes at least one fluid - filled container ; a control unit for enabling a user to increase or reduce an amount of fluid in the container ; and a stirrup - shaped device for immobilizing the talocalcaneonavicular joint and for controlling and / or stabilizing the ankle joint . the insole is a prefabricated insole selectable from a range of differently shaped insoles for the various forms of foot prophylaxis and the various shoe sizes . the insole can also be configured in combination with a athletic sock and can be configured as a partial insole . this enables users to adapt the prefabricated insoles suitable for their shoe size and form of foot prophylaxis to their own personal needs .