| abstract |
A breathable insulating fabric is described, from which wearable articles such as garments oe medical support fabrics or dressings can be made, in which an elastomeric insulating sheet (1) has perforations (4) which have relatively wide (5) and narrow (6) regions along their lengths to define an internal chamber (7) open to the inner side of the sheet as worn and sufficiently closed to the outer side of the sheet to permit air passing from the inner to the outer side of the sheet to accumulate in the chamber under increased pressure prior to passing to the outer side. The breathability of the fabric is adaptable to changes in the external conditions and the biological functions of the wearer. |