referring initially to fig1 , the invention concerns items of clothing , e . g . a jacket , trousers , pullover , vest , coat ( with or without hood ), shoes and men &# 39 ; s or women &# 39 ; s briefs made from a water impermeable envelope 2 filled with a gelatinous heat and / or cold thermal storage medium 4 which is fluid at service temperature . when the human body is exposed to cold , its energy or calorie consumption increases . the reason for this is that the body attempts to maintain a normal temperature of approx . 36 . 5 deg . c . the invention can help people who want to accelerate their weight loss by increasing the calories necessarily expended on temperature maintenance while undertaking a sporting activity . the invention &# 39 ; s users can cool the clothing in apparatus suitable for this purpose and wear it , e . g . when they train in a fitness studio , thereby losing weight in two respects , firstly by training and secondly by increasing their base energy requirements by wearing the invention . the human body begins to sweat with physical activity such as sport , or when the external temperature has reached a level where the body uses the cooling effects of evaporation to maintain a normal temperature level . people who do not want to sweat during normal exercising can make as good use of the invention ( when cooled prior to exercising ) as those who wish to exercise in high temperatures . people in hot , muggy areas who , for example , would like to get away from their air - conditioned hotel in the evening and go for a stroll or visit a nearby restaurant , can maintain a normal body temperature by reducing the invention &# 39 ; s temperature to a more pleasant temperature . if the invention is preparatively “ charged ” with heat , a large source of warmth can be released to the body from the heat - storing thermal medium . restaurants , which would like to be able to offer their guests the opportunity to sit outside on beautiful , cool , clear evenings can loan their guests warmth - storing thermal coats allowing them to keep either their whole body or parts of the body warm for long periods of time in the cold . the invention is interesting as a fashion accessory . the invention may be made in transparent plastic ( for instance ) filled with transparent heat and / or cold thermal storage medium so that the clothes warn under the invention can still be on show in cold temperatures . items of clothing which dissipate heat independently as individual items are unknown . problems inherent in known systems are solved consistent with the present invention by a jacket , trousers , pullover , vest , coat ( with or without hood ), shoes and men &# 39 ; s or women &# 39 ; s briefs being made from a water impermeable envelope , e . g . polyurethane or another plastic sheeting material , which in the temperature range − 30 degrees celsius to + 100 degrees celsius is adequately pliable and which is filled with a gelatinous or pliable heat or cold thermal storage medium , fluid at service temperature and which does not solidify at temperatures of less than 0 degrees or lose its plasticity . in various embodiments , the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes and men &# 39 ; s or women &# 39 ; s briefs have two halves , a front and aback , which are sealed together at their edges . both front and back have cells running horizontally across the body in semi - circles which prevent the thermal material from sagging . each of the sides is made of two layers of plastic film which have been sealed along their edges . one film has horizontal cells separated by ridges . the cells are formed by extruding the film , i . e . swelling it out or in . the cells are filled with heat and / or cold thermal storage material . the second film is laid flat onto the first and sealed along the ridged area of the cells . referring now to fig3 , in various embodiments , the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s and women s briefs are divided into rectangular or square cells 10 by way of ridges 12 , such as ridge or heat seal 6 of fig2 , to ensure even distribution of the thermal gel . each of the two sides is made of two layers of plastic film which have been sealed along their edges 8 . in various embodiments , one film has horizontal and vertical cells separated by ridges forming a crosshatch pattern of substantially quadrilateral - shaped cells . in various embodiments , the cells are square or rectangular in configuration . the cells are formed by extruding the film , i . e . swelling it out or in . the cells are filled with heat and / or cold thermal storage material . the second film is laid flat onto the first and sealed along the ridged area of the cells . referring now to fig4 , in various embodiments , the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s or women s briefs have an external thermal insulating layer of , e . g . aluminum crepe foil 14 or thin foam sheeting which in turn is coated with aluminum crepe or foil type material . referring now , to fig5 , in various embodiments , a stretch material lining 16 is inserted or sewn between the two adjacent halves of the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s or women &# 39 ; s briefs so that the clothing fits snugly . such stretch material can comprise an elastic band or any number of flexible , elastic , and / or stretchable materials that are known in the art of clothing manufacture . referring now to fig6 , in various embodiments , the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s or women s briefs have stretch material 22 inserted between the adjacent rectangular or square cells 20 so that the clothing fits snugly . referring now to fig7 , in various embodiments , the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s or women s briefs the inner lining of the garment s made of a comfortable material such as cotton ( not shown ) and may be attached by means of velcro 24 or snap fasteners 26 . the advantage of the invention is that the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s or women &# 39 ; s briefs can be cooled and influence the body temperature in such a way that the body uses more energy and / or does not begin to sweat . anyone wishing to lose weight can wear the cooled clothes and burn more calories . people who want to be able to be outside in hot places can avoid sweating ; as can people who are exposed to the heat of stage spotlights . the advantage of the invention is that the jacket , trousers , pullover , vest , coat ( with or without hood ), shoes , men &# 39 ; s or women &# 39 ; s briefs can be “ re - charged ” with heat . the body does not then have to compensate for cold temperatures itself , but receives external warmth . this thereby makes it quite possible to rest in one position in cooler temperatures , staying comfortable and warm . it would therefore be possible for cafes , for example , to have the invention available for their guests who would like to sit outside on beautiful but cool spring and autumn days . the invention can also be manufactured as a transparent fashion accessory so that whatever is worm underneath the invention is still visible . the invention could also be used to create a more pleasant feeling for people with poor blood circulation who feel cold .
articles of clothing are disclosed that comprise a water impermeable envelope defining an outer surface and an inner surface and a space between the outer surface and inner surface . the space between the inner and outer surfaces is substantially filled with a gelatinous heat and / or cold thermal storage medium that is fluid at service temperature .